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Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
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1

Definition: Reduced Electricity Losses | Open Energy Information  

Open Energy Info (EERE)

Losses Losses Jump to: navigation, search Dictionary.png Reduced Electricity Losses Functions that provide this benefit could help manage peak feeder loads, reduced electricity throughput, locate electricity production closer to the load and ensure that voltages remain within service tolerances, while minimizing the amount of reactive power provided. These actions can reduce electricity losses by making the system more efficient for a given load served or by actually reducing the overall load on the system.[1] Related Terms load, electricity generation, reactive power, smart grid References ↑ SmartGrid.gov 'Description of Benefits' An inl LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ine Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Reduced_Electricity_Losses&oldid=502644

2

Strongly Dipolar Polythiourea and Polyurea Dielectrics with High Electrical Breakdown, Low Loss, and High Electrical Energy Density  

Science Journals Connector (OSTI)

Dielectric materials with high electric energy density and low loss are of great importance for applications in modern electronics and electrical systems. Strongly dipolar materials have the potential ... polymer...

Shan Wu; Quinn Burlingame; Zhao-Xi Cheng; Minren Lin…

2014-12-01T23:59:59.000Z

3

Tuneable dielectric films having low electrical losses  

DOE Patents [OSTI]

The present invention is directed to a method for forming dielectric thin films having substantially reduced electrical losses at microwave and millimeter wave frequencies relative to conventional dielectric thin films. The reduction in losses is realized by dramatically increasing the grain sizes of the dielectric films, thereby minimizing intergranular scattering of the microwave signal due to grain boundaries and point defects. The increase in grain size is realized by heating the film to a temperature at which the grains experience regrowth. The grain size of the films can be further increased by first depositing the films with an excess of one of the compoents, such that a highly mobile grain boundary phase is formed.

Dimos, Duane Brian (Albuquerque, NM); Schwartz, Robert William (Albuquerque, NM); Raymond, Mark Victor (Albuquerque, NM); Al-Shareef, Husam Niman (Boise, ID); Mueller, Carl (Lakewood, CO); Galt, David (Denver, CO)

2000-01-01T23:59:59.000Z

4

ELECTRICAL ENERGY SYSTEMS ELECTRICAL ENERGY SYSTEMS  

E-Print Network [OSTI]

. In its Energy Policy, the Scottish Government stated that it is Scotland's ambition to become a worldMEng ELECTRICAL ENERGY SYSTEMS #12;MEng ELECTRICAL ENERGY SYSTEMS Electrical energy is vital aspects of modern life. One of the biggest challenges facing society is the need for reliable energy

Strathclyde, University of

5

Electricity Distribution System Workshop  

Broader source: Energy.gov (indexed) [DOE]

Discussion Summary Discussion Summary Electricity Transmission System Workshop 1 Grid Tech Team Discussion Summary Electricity Transmission System Workshop 2 Table of Contents INTRODUCTION ............................................................................................................................................. 3 EXECUTIVE SUMMARY .................................................................................................................................. 4 Process ...................................................................................................................................................... 4 Synthesized Challenges ............................................................................................................................. 5

6

Automobile Electrical Systems  

Science Journals Connector (OSTI)

The modern electrical system has been developed, over a period of some fifty years from the days of the early motor-car which usually had only one electrical system, namely, that of the ignition comp...

Arthur W. Judge

1970-01-01T23:59:59.000Z

7

Loss reduction experiences in electric power distribution companies of Iran  

Science Journals Connector (OSTI)

The experiences of the loss reduction projects in electric power distribution companies (EPDCs) of Iran are presented. The loss reduction methods, which are proposed individually by 14 EPDCs, corresponding energy saving (ES), Investment costs (IC), and loss rate reductions are provided. In order to illustrate the effectiveness and performance of the loss reduction methods, three parameters are proposed as energy saving per investment costs (ESIC), energy saving per quantity (ESPQ), and investment costs per quantity (ICPQ). The overall ESIC of 14 EPDC as well as individual average and standard deviation of the EISC for each method is presented and compared. In addition, the average and standard deviation of the \\{ESPQs\\} and \\{ICPQs\\} for the loss reduction methods, individually, are provided and investigated. These parameters are useful for \\{EPDCs\\} that intend to reduce the electric losses in distribution networks as a benchmark and as a background in the planning purposes.

Ali Arefi; Javad Olamaei; Akbar Yavartalab; Hesam Keshtkar

2012-01-01T23:59:59.000Z

8

DETERMINATION OF LOSS FACTORS IN A DEREGULATED SYSTEM Ashikur Bhuiya  

E-Print Network [OSTI]

Alberta Electric System Operator e-mail: arb397@mail.usask.ca N. Chowdhury Department of Electrical to the operation and control of a system, typical tasks of an ISO may also include accepting bids from generators, providing access to the successful bidders and allocating transmission loss among the generators. Based

Saskatchewan, University of

9

Hawaii electric system reliability.  

SciTech Connect (OSTI)

This report addresses Hawaii electric system reliability issues; greater emphasis is placed on short-term reliability but resource adequacy is reviewed in reference to electric consumers' views of reliability %E2%80%9Cworth%E2%80%9D and the reserve capacity required to deliver that value. The report begins with a description of the Hawaii electric system to the extent permitted by publicly available data. Electrical engineering literature in the area of electric reliability is researched and briefly reviewed. North American Electric Reliability Corporation standards and measures for generation and transmission are reviewed and identified as to their appropriateness for various portions of the electric grid and for application in Hawaii. Analysis of frequency data supplied by the State of Hawaii Public Utilities Commission is presented together with comparison and contrast of performance of each of the systems for two years, 2010 and 2011. Literature tracing the development of reliability economics is reviewed and referenced. A method is explained for integrating system cost with outage cost to determine the optimal resource adequacy given customers' views of the value contributed by reliable electric supply. The report concludes with findings and recommendations for reliability in the State of Hawaii.

Silva Monroy, Cesar Augusto; Loose, Verne William

2012-09-01T23:59:59.000Z

10

Electricity Distribution System Workshop  

Broader source: Energy.gov (indexed) [DOE]

Grid Tech Team Grid Tech Team Discussion Summary Electricity Distribution System Workshop 2 Table of Contents INTRODUCTION ............................................................................................................................................. 3 EXECUTIVE SUMMARY .................................................................................................................................. 4 Process ...................................................................................................................................................... 4 Common Themes ...................................................................................................................................... 5 Discussion Topic Tables ............................................................................................................................. 8

11

Solar electric systems  

SciTech Connect (OSTI)

Electricity from solar sources is the subject. The state-of-the-art of photovoltaics, wind energy and solar thermal electric systems is presented and also a broad range of solar energy activities throughout the Arab world is covered. Contents, abridged: Solar radiation fundamentals. Basic theory solar cells. Solar thermal power plants. Solar energy activities at the scientific research council in Iraq. Solar energy program at Kuwait Institute for Scientific Research. Prospects of solar energy for Egypt. Non-conventional energy in Syria. Wind and solar energies in Sudan. Index.

Warfield, G.

1984-01-01T23:59:59.000Z

12

Power loss of an oscillating electric dipole in a quantum plasma  

SciTech Connect (OSTI)

A system of linearized quantum plasma equations (quantum hydrodynamic model) has been used for investigating the dispersion equation for electrostatic waves in the plasma. Furthermore, dispersion relations and their modifications due to quantum effects are used for calculating the power loss of an oscillating electric dipole. Finally, the results are compared in quantum and classical regimes.

Ghaderipoor, L. [Department of Physics, Faculty of Science, University of Qom, 3716146611 (Iran, Islamic Republic of); Mehramiz, A. [Department of Physics, Faculty of Science, Imam Khomeini Int'l University, Qazvin 34149-16818 (Iran, Islamic Republic of)

2012-12-15T23:59:59.000Z

13

NSTX Electrical Power Systems  

SciTech Connect (OSTI)

The National Spherical Torus Experiment (NSTX) has been designed and installed in the existing facilities at Princeton Plasma Physic Laboratory (PPPL). Most of the hardware, plant facilities, auxiliary sub-systems, and power systems originally used for the Tokamak Fusion Test Reactor (TFTR) have been used with suitable modifications to reflect NSTX needs. The design of the NSTX electrical power system was tailored to suit the available infrastructure and electrical equipment on site. Components were analyzed to verify their suitability for use in NSTX. The total number of circuits and the location of the NSTX device drove the major changes in the Power system hardware. The NSTX has eleven (11) circuits to be fed as compared to the basic three power loops for TFTR. This required changes in cabling to insure that each cable tray system has the positive and negative leg of cables in the same tray. Also additional power cabling had to be installed to the new location. The hardware had to b e modified to address the need for eleven power loops. Power converters had to be reconnected and controlled in anti-parallel mode for the Ohmic heating and two of the Poloidal Field circuits. The circuit for the Coaxial Helicity Injection (CHI) System had to be carefully developed to meet this special application. Additional Protection devices were designed and installed for the magnet coils and the CHI. The thrust was to making the changes in the most cost-effective manner without compromising technical requirements. This paper describes the changes and addition to the Electrical Power System components for the NSTX magnet systems.

A. Ilic; E. Baker; R. Hatcher; S. Ramakrishnan; et al

1999-12-16T23:59:59.000Z

14

Electric Transmission System Workshop  

Broader source: Energy.gov (indexed) [DOE]

Lauren Azar Lauren Azar Senior Advisor to Secretary Chu November 2, 2012 Electric Transmission System Workshop We all have "visions," in one form or another: * Corporations call them strategic plans * RTOs ... transmission expansion plans or Order 1000 plans * State PUCs ... integrated resource plans * Employees ... career goals Visions for the Future Artist: Paolo Frattesi Artist: Paolo Frattesi Uncertainty = changing industry Changes in technology, threats and policies Can we make decisions in the face of change? .......How can we not? Can we agree on several key design attributes for the future grid? Taking Action in the Face of Uncertainty Step 1: Establish common ground on key design attributes GTT's Proposed Key Design Attributes:

15

Interdependence of Electricity System Infrastructure and Natural...  

Broader source: Energy.gov (indexed) [DOE]

Interdependence of Electricity System Infrastructure and Natural Gas Infrastructure - EAC 2011 Interdependence of Electricity System Infrastructure and Natural Gas Infrastructure -...

16

Dissipative Hamiltonian realisation and robust H? control of induction motor considering iron losses for electric vehicles  

Science Journals Connector (OSTI)

The dissipative Hamiltonian realisation and robust H? control of induction motor considering iron losses for electric vehicle are investigated in this paper. First, the dissipative Hamiltonian of the electric vehicle drive system is obtained based on the system's mathematical model in a synchronously rotating frame. Then, a robust co-ordinated tracking controller is designed based on the dissipative Hamiltonian form. One part of the controller is designed by using the method of interconnection and damping assignment to ensure the system's stability, and another part is designed by using the Hamiltonian system's robust H? technique to attenuate external disturbances. The simulation results show that the controller proposed in the paper works very well in robust tracking of induction motor.

Wenhui Pei; Chenghui Zhang; Naxin Cui; Ke Li

2013-01-01T23:59:59.000Z

17

NREL: Energy Systems Integration Facility - Research Electrical...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Research Electrical Distribution Bus The Research Electrical Distribution Bus is the Energy Systems Integration Facility's internal utility infrastructure interconnecting its...

18

Electric utility system master plan  

SciTech Connect (OSTI)

This publication contains the electric utility system plan and guidelines for providing adequate electric power to the various facilities of Lawrence Livermore National Laboratory in support of the mission of the Laboratory. The topics of the publication include general information on the current systems and their operation, a planning analysis for current and future growth in energy demand, proposed improvements and expansions required to meet long range site development and the site`s five-year plan.

Erickson, O.M.

1992-10-01T23:59:59.000Z

19

Sandia National Laboratories: Advanced Electric Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

InfrastructureAdvanced Electric Systems Advanced Electric Systems grid-slide1 grid-slide2 grid-slide3 grid-slide4 Advanced Electric Systems Integrating Renewable Energy into the...

20

System Losses and Assessment Trade Study  

SciTech Connect (OSTI)

This Advanced Fuel Cycle Initiative (AFCI) study has developed new analysis methods to examine old and new technology options toward the goal of improving fuel cycle systems. We have integrated participants and information from AFCI Systems Analysis, Transmutation Fuels, Separations, and Waste Form Campaigns in the Systems Losses and Assessment Trade Study. The initial objectives of this study were to 1) increase understanding of system interdependencies and thereby identify system trade-offs that may yield important insights, 2) define impacts of separations product purity on fuel manufacture and transmutation reactivity, 3) define impacts from transuranic (TRU) losses to waste, 4) identify the interrelationships involved in fuels and separations technology performance, and 5) identify system configuration adjustments with the greatest potential for influencing system losses. While bounding and analyzing this initial problem, we also identified significantly higher-level programmatic drivers with broad implications to the current fuel cycle research charter and the general issue of a DOE complex wide need for a comprehensive and integrated nuclear material management as addressed by the new DOE Order 410.2 titled “Management of Nuclear Materials”. The initial modeling effort developed in this study for a much smaller subset of material (i.e., commercial fuel) and a selected transmutation scheme (i.e., fast reactor recycling) is a necessary first step towards examining a broader set of nuclear material management options, dispositioning strategies and integrated waste management options including potential areas of research leverage. The primary outcome from this initial study has been an enhanced integration among Campaigns and associated insights and analysis methods. Opportunities for improved understanding between the groups abound. The above lanthanide-actinide example highlights the importance of evaluating options via integration across the Campaigns. Plans for Fiscal Year 2010 are being made in a coordinated fashion such that the knowledge gained from the research performed by the Campaigns can benefit on-going work of the study, and that improved understanding of the system relationships can be used to guide the specific research and development (R&D) activities within the Campaigns. In FY-10, the System Losses and Assessment Trade Study will carry-over activities from FY-09. We will continue to refine impurity and loss estimates and impurity limits on fuels by incorporating results from ongoing R&D. And we will begin work on an enhanced nuclear material management model to allow us to continue to improve our overall system understanding of the trade-offs between separations, fuel fabrication, waste forms, waste disposition, SNM losses, reactor performance, and proliferation resistance. In the future, we can also better understand how used fuel and other forms of remote-handled SNM can be better integrated into an overall nuclear material management program that will evolve for the DOE complex via Order 410.2 (DOE 2009).

David Shropshire; Steve Piet; Nick Soelberg; Robert Cherry; Roger Henry; David Meikrantz; Greg Teske; Eric Shaber; Candido Pereira

2009-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

The Consumption of Carbon in the Electric Arc. No. III. The Anode Loss  

Science Journals Connector (OSTI)

1 February 1916 research-article The Consumption of Carbon in the Electric Arc. No. III. The Anode Loss W. G. Duffield Mary D. Waller The Royal Society is collaborating with...

1916-01-01T23:59:59.000Z

22

Computation of electric-arc parameters taking account of convective and radiant losses  

Science Journals Connector (OSTI)

An approximate solution of the problem of an electrical arc in a turbulent argon stream is obtained, taking into account convective and radiant energy losses in the discharge channel at atmospheric pressure.

N. A. Zyrichev

1971-10-01T23:59:59.000Z

23

Superconductivity for Electric Systems: 2008 Annual Peer Review Final  

Broader source: Energy.gov (indexed) [DOE]

for Electric Systems: 2008 Annual Peer Review for Electric Systems: 2008 Annual Peer Review Final Report Superconductivity for Electric Systems: 2008 Annual Peer Review Final Report The Office of Electricity Delivery and Energy Reliability's High Temperature Superconductivity (HTS) for Electric Systems Program's specific mission is to work in partnership with industry to develop HTS wire and perform other research and development activities leading to the commercialization of HTS-based electric power applications by U.S. companies. This technology contributes to several key performance improvements of the grid. It enhances reliability by increasing capacity, which relieves congestion and helps prevent outages. Efficiency is improved as a result of the reduction of loss during operation which both conserves

24

Small Solar Electric Systems | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Small Solar Electric Systems Small Solar Electric Systems Small Solar Electric Systems July 15, 2012 - 4:11pm Addthis A small solar electric or photovoltaic system can be a reliable and pollution-free producer of electricity for your home or office. What are the key facts? Because PV technologies use both direct and scattered sunlight to create electricity, the solar resource across the United States is ample for home solar electric systems. Solar cells-the basic building blocks of a PV system -- consist of semiconductor materials. A typical home solar electric, or PV, system consists solar cells, modules or panels (which consist of solar cells), arrays (which consist of modules), and balance-of-system parts. A small solar electric or photovoltaic (PV) system can be a reliable and pollution-free producer of electricity for your home or office. Small PV

25

Small Solar Electric Systems | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Small Solar Electric Systems Small Solar Electric Systems Small Solar Electric Systems July 15, 2012 - 4:11pm Addthis A small solar electric or photovoltaic system can be a reliable and pollution-free producer of electricity for your home or office. What are the key facts? Because PV technologies use both direct and scattered sunlight to create electricity, the solar resource across the United States is ample for home solar electric systems. Solar cells-the basic building blocks of a PV system -- consist of semiconductor materials. A typical home solar electric, or PV, system consists solar cells, modules or panels (which consist of solar cells), arrays (which consist of modules), and balance-of-system parts. A small solar electric or photovoltaic (PV) system can be a reliable and pollution-free producer of electricity for your home or office. Small PV

26

Detection of arcs in automotive electrical systems  

E-Print Network [OSTI]

At the present time, there is no established method for the detection of DC electric arcing. This is a concern for forthcoming advanced automotive electrical systems which consist of higher DC electric power bus voltages, ...

Mishrikey, Matthew David

2005-01-01T23:59:59.000Z

27

Quantum cryptographic system with reduced data loss  

DOE Patents [OSTI]

A secure method for distributing a random cryptographic key with reduced data loss. Traditional quantum key distribution systems employ similar probabilities for the different communication modes and thus reject at least half of the transmitted data. The invention substantially reduces the amount of discarded data (those that are encoded and decoded in different communication modes e.g. using different operators) in quantum key distribution without compromising security by using significantly different probabilities for the different communication modes. Data is separated into various sets according to the actual operators used in the encoding and decoding process and the error rate for each set is determined individually. The invention increases the key distribution rate of the BB84 key distribution scheme proposed by Bennett and Brassard in 1984. Using the invention, the key distribution rate increases with the number of quantum signals transmitted and can be doubled asymptotically.

Lo, Hoi-Kwong (1309, Low Block, Lei Moon House Ap Lei Chau Estate, Hong Kong, HK); Chau, Hoi Fung (Flat C, 42nd Floor, Tower 1, University Heights 23 Pokfield Road, Pokfulam, Hong Kong, HK)

1998-01-01T23:59:59.000Z

28

Magnetic and electric contributions to the energy loss in a dynamical QCD medium  

E-Print Network [OSTI]

The computation of radiative energy loss in a finite size QCD medium with dynamical constituents is a key ingredient for obtaining reliable predictions for jet quenching in ultra-relativistic heavy ion collisions. It was previously shown that energy loss in dynamical QCD medium is significantly higher compared to static QCD medium. To understand this difference, we here analyze magnetic and electric contributions to energy loss in dynamical QCD medium. We find that the significantly higher energy loss in the dynamical case is entirely due to appearance of magnetic contribution in the dynamical medium. While for asymptotically high energies, the energy loss in static and dynamical medium approach the same value, we find that the physical origin of the energy loss in these two cases is different.

Magdalena Djordjevic

2011-05-21T23:59:59.000Z

29

ELECTRICAL SUPPORT SYSTEM DESCRIPTION DOCUMENT  

SciTech Connect (OSTI)

The purpose of this revision of the System Design Description (SDD) is to establish requirements that drive the design of the electrical support system and their bases to allow the design effort to proceed to License Application. This SDD is a living document that will be revised at strategic points as the design matures over time. This SDD identifies the requirements and describes the system design as they exist at this time, with emphasis on those attributes of the design provided to meet the requirements. This SDD has been developed to be an engineering tool for design control. Accordingly, the primary audience/users are design engineers. This type of SDD both ''leads'' and ''trails'' the design process. It leads the design process with regard to the flow down of upper tier requirements onto the system. Knowledge of these requirements is essential in performing the design process. The SDD trails the design with regard to the description of the system. The description provided in the SDD is a reflection of the results of the design process to date. Functional and operational requirements applicable to electrical support systems are obtained from the ''Project Functional and Operational Requirements'' (F&OR) (Siddoway 2003). Other requirements to support the design process have been taken from higher-level requirements documents such as the ''Project Design Criteria Document'' (PDC) (Doraswamy 2004), and fire hazards analyses. The above-mentioned low-level documents address ''Project Requirements Document'' (PRD) (Canon and Leitner 2003) requirements. This SDD contains several appendices that include supporting information. Appendix B lists key system charts, diagrams, drawings, and lists, and Appendix C includes a list of system procedures.

S. Roy

2004-06-24T23:59:59.000Z

30

Small Wind Electric Systems | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Small Wind Electric Systems Small Wind Electric Systems Small Wind Electric Systems July 15, 2012 - 5:22pm Addthis Wind power is the fastest growing source of energy in the world -- efficient, cost effective, and non-polluting. What does this mean for me? Small wind electric systems can be one of the most efficient ways of producing electricity for your home. Wind energy is a fast growing market, because it is effective and cost efficient. If you have enough wind resource in your area and the situation is right, small wind electric systems are one of the most cost-effective home-based renewable energy systems -- with zero emissions and pollution. Small wind electric systems can: Lower your electricity bills by 50%-90% Help you avoid the high costs of having utility power lines extended

31

Reduction of Hydrocarbon Losses to Flare Systems  

E-Print Network [OSTI]

merit consideration because the losses and associated economic penalties are assumed to be small. Flare gas flow is not easily measured and as a result, most plants are unaware of how much product they are actually losing during normal operation...

Page, J.

1979-01-01T23:59:59.000Z

32

Energy loss of ions by electric-field fluctuations in a magnetized plasma  

SciTech Connect (OSTI)

The results of a theoretical investigation of the energy loss of charged particles in a magnetized classical plasma due to the electric-field fluctuations are reported. The energy loss for a test particle is calculated through the linear-response theory. At vanishing magnetic field, the electric-field fluctuations lead to an energy gain of the charged particle for all velocities. It has been shown that in the presence of strong magnetic field, this effect occurs only at low velocities. In the case of high velocities, the test particle systematically loses its energy due to the interaction with a stochastic electric field. The net effect of the fluctuations is the systematic reduction of the total energy loss (i.e., the sum of the polarization and stochastic energy losses) at vanishing magnetic field and reduction or enhancement at strong field, depending on the velocity of the particle. It is found that the energy loss of the slow heavy ion contains an anomalous term that depends logarithmically on the projectile mass. The physical origin of this anomalous term is the coupling between the cyclotron motion of the plasma electrons and the long-wavelength, low-frequency fluctuations produced by the projectile ion. This effect may strongly enhance the stochastic energy gain of the particle.

Nersisyan, Hrachya B. [Institute of Radiophysics and Electronics, 0203 Ashtarak (Armenia); Centre of Strong Fields Physics, Yerevan State University, Alex Manoogian str. 1, 0025 Yerevan (Armenia); Deutsch, Claude [LPGP - UMR-CNRS 8578, Universite Paris XI, F-91405 Orsay (France)

2011-06-15T23:59:59.000Z

33

ThermoElectric Power System Simulator (TEPSS) | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

ThermoElectric Power System Simulator (TEPSS) ThermoElectric Power System Simulator (TEPSS) It describes the tool ThermoElectric Power System Simulator (TEPSS) which enables...

34

DOE Electricity Distribution System Workshop  

Broader source: Energy.gov (indexed) [DOE]

DISTRIBUTION SYSTEM WORKSHOP DISTRIBUTION SYSTEM WORKSHOP Mapping Challenges and Opportunities to Help Guide DOE R&D Investments over the Next Five Years Sheraton Crystal City, 1800 Jefferson Davis Hwy, Arlington, Virginia September 24-26, 2012 AGENDA Monday, September 24, 2012 1:00-1:30 Welcome and Introduction to the Grid Tech Team (GTT), Vision, and Framework The GTT synchronizes all grid-related activities across the DOE Dr. Anjan Bose, Grid Tech Team Lead 1:30-1:50 OE Vision, Activities, and Issues Patricia A. Hoffman, Assistant Secretary for the Office of Electricity Delivery and Energy Reliability (OE) 1:50-2:10 EERE Vision, Activities, and Issues Dr. David Danielson, Assistant Secretary for the Office of Energy Efficiency and Renewable Energy (EERE) 2:10-2:40 Open Q&A Rich Scheer,

35

DOE Electricity Transmission System Workshop  

Broader source: Energy.gov (indexed) [DOE]

TRANSMISSION SYSTEM WORKSHOP TRANSMISSION SYSTEM WORKSHOP Mapping Challenges and Opportunities to Help Guide DOE R&D Investments over the Next Five Years DoubleTree Crystal City, 300 Army Navy Drive, Arlington, VA November 1-2, 2012 AGENDA Thursday, November 1, 2012 8:00-8:10 Welcome and Kickoff David Sandalow, Acting Undersecretary of Energy 8:10-8:30 Introduction to the Grid Tech Team (GTT), Vision, and Framework Distribution Workshop Summary Dr. Anjan Bose, Grid Tech Team Lead 8:30-8:50 OE Vision, Activities, and Issues Patricia A. Hoffman, Assistant Secretary for the Office of Electricity Delivery and Energy Reliability (OE) 8:50-9:10 EERE Vision, Activities, and Issues Dr. David Danielson, Assistant Secretary for the Office of Energy Efficiency and Renewable Energy (EERE)

36

Electric Transmission Line Flashover Prediction System  

E-Print Network [OSTI]

Center since 1996 PSERC #12;Power Systems Engineering Research Center Electric Transmission LineElectric Transmission Line Flashover Prediction System Ph.D. Thesis and Final Project Report Power@asu.edu Power Systems Engineering Research Center This is a project report from the Power Systems Engineering

37

Electric Power System Asset Optimization  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

NETL-430/061110 NETL-430/061110 March 7, 2011 430.01.03 Electric Power System Asset Optimization Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or

38

Blackout 2003: Electric System Working Group Technical Conference...  

Broader source: Energy.gov (indexed) [DOE]

Electric System Working Group Technical Conference - Comments and Recommendations Blackout 2003: Electric System Working Group Technical Conference - Comments and Recommendations...

39

Lincoln Electric System (Residential)- Sustainable Energy Program  

Broader source: Energy.gov [DOE]

Lincoln Electric System (LES) offers several rebates to residential customers who are interested in upgrading to energy efficient household equipment. The program includes rebates for insulation...

40

GROWDERS Demonstration of Grid Connected Electricity Systems...  

Open Energy Info (EERE)

GROWDERS Demonstration of Grid Connected Electricity Systems (Smart Grid Project) (Spain) Jump to: navigation, search Project Name GROWDERS Demonstration of Grid Connected...

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Advanced Integrated Electric Traction System | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. ape09smith.pdf More Documents & Publications Advanced Integrated Electric Traction System...

42

Advanced Integrated Electric Traction System | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

and Vehicle Technologies Program Annual Merit Review and Peer Evaluation ape014smith2011o.pdf More Documents & Publications Advanced Integrated Electric Traction System...

43

Superconductivity for electric power systems: Program overview  

SciTech Connect (OSTI)

Largely due to government and private industry partnerships, electric power applications based upon high-temperature superconductivity are now being designed and tested only seven years after the discovery of the high-temperature superconductors. These applications offer many benefits to the national electric system including: increased energy efficiency, reduced equipment size, reduced emissions, increased stability/reliability, deferred expansion, and flexible electricity dispatch/load management. All of these benefits have a common outcome: lower electricity costs and improved environmental quality. The U.S. Department of Energy (DOE) sponsors research and development through its Superconductivity Program for Electric Power Systems. This program will help develop the technology needed for U.S. industries to commercialize high-temperature superconductive electric power applications. DOE envisions that by 2010 the U.S. electric power systems equipment industry will regain a major share of the global market by offering superconducting products that outperform the competition.

Not Available

1995-02-01T23:59:59.000Z

44

Definition: Bulk Electric System | Open Energy Information  

Open Energy Info (EERE)

Bulk Electric System Bulk Electric System Jump to: navigation, search Dictionary.png Bulk Electric System As defined by the Regional Reliability Organization, the electrical generation resources, transmission lines, interconnections with neighboring systems, and associated equipment, generally operated at voltages of 100 kV or higher. Radial transmission facilities serving only load with one transmission source are generally not included in this definition.[1] Related Terms Regional Reliability Organization, transmission lines, transmission line References ↑ Glossary of Terms Used in Reliability Standards An in LikeLike UnlikeLike You like this.Sign Up to see what your friends like. line Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Bulk_Electric_System&oldid=48030

45

Electromagnetic interference filter for automotive electrical systems  

DOE Patents [OSTI]

A filter for an automotive electrical system includes a substrate having first and second conductive members. First and second input terminals are mounted to the substrate. The first input terminal is electrically connected to the first conductive member, and the second input terminal is electrically connected to the second conductive member. A plurality of capacitors are mounted to the substrate. Each of the capacitors is electrically connected to at least one of the first and second conductive members. First and second power connectors are mounted to the substrate. The first power connector is electrically connected to the first conductive member, and the second power connector is electrically connected to the second conductive member. A common mode choke is coupled to the substrate and arranged such that the common mode choke extends around at least a portion of the substrate and the first and second conductive members.

Herron, Nicholas Hayden; Carlson, Douglas S; Tang, David; Korich, Mark D

2013-07-02T23:59:59.000Z

46

Bus bar electrical feedthrough for electrorefiner system  

DOE Patents [OSTI]

A bus bar electrical feedthrough for an electrorefiner system may include a retaining plate, electrical isolator, and/or contact block. The retaining plate may include a central opening. The electrical isolator may include a top portion, a base portion, and a slot extending through the top and base portions. The top portion of the electrical isolator may be configured to extend through the central opening of the retaining plate. The contact block may include an upper section, a lower section, and a ridge separating the upper and lower sections. The upper section of the contact block may be configured to extend through the slot of the electrical isolator and the central opening of the retaining plate. Accordingly, relatively high electrical currents may be transferred into a glovebox or hot-cell facility at a relatively low cost and higher amperage capacity without sacrificing atmosphere integrity.

Williamson, Mark; Wiedmeyer, Stanley G; Willit, James L; Barnes, Laurel A; Blaskovitz, Robert J

2013-12-03T23:59:59.000Z

47

Advanced Integrated Electric Traction System | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. ape014smith2010o.pdf More Documents & Publications Advanced Integrated Electric Traction System...

48

Alternatives to Electric Air Conditioning Systems  

E-Print Network [OSTI]

The rapid escalation of electricity prices has created an opportunity to re-introduce gas-fired air conditioning systems to the commercial building market. In 1985 Gas Research Institute initiated a program to develop an advanced gas engine...

Lindsay, B. B.; Koplow, M. D.

1988-01-01T23:59:59.000Z

49

Electricity Demand and Energy Consumption Management System  

E-Print Network [OSTI]

This project describes the electricity demand and energy consumption management system and its application to the Smelter Plant of Southern Peru. It is composted of an hourly demand-forecasting module and of a simulation component for a plant electrical system. The first module was done using dynamic neural networks, with backpropagation training algorithm; it is used to predict the electric power demanded every hour, with an error percentage below of 1%. This information allows management the peak demand before this happen, distributing the raise of electric load to other hours or improving those equipments that increase the demand. The simulation module is based in advanced estimation techniques, such as: parametric estimation, neural network modeling, statistic regression and previously developed models, which simulates the electric behavior of the smelter plant. These modules allow the proper planning because it allows knowing the behavior of the hourly demand and the consumption patterns of the plant, in...

Sarmiento, Juan Ojeda

2008-01-01T23:59:59.000Z

50

An investigation of simplified loss formula evaluation of total and incremental power system losses  

E-Print Network [OSTI]

Program ~ a o o ~ o a o o o o e a o o 11 Incremental Transmission Loss Calculation . . . . . . o 13 The Transmission System ~ a ~ o o ~ ~ o o o o o o 14 IVa RESULTS e ~ o a ~ ~ a a ~ e a o a ~ e ~ o a o o o IQ V SUMMARY a o o o a ~ o ~ a o 0 o o o ~ 0..., 1 X II tf g tf ff tf lt 4 0o9 50/ System Load ? Per Cent of Peak 1o06 f 1. 05 0 Xo1. 04 0 e 5 1, 03 1. 02 Ir 5 F. 1o01 4 tI 1o0 III II 0. 99 5 FIGURE IVa Simplified Loss Formula Evaluation of Pen- alty Faotor ? Bus 1 All...

Malinowski, James Henry

1962-01-01T23:59:59.000Z

51

NREL: Energy Analysis: Electric System Flexibility and Storage  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Electric System Flexibility and Storage Electric System Flexibility and Storage Options for Increasing Electric System Flexibility to Accommodate Higher Levels of Variable Renewable Electricity Increased electric system flexibility, needed to enable electricity supply-demand balance with high levels of renewable generation, can come from a portfolio of supply- and demand-side options, including flexible conventional generation, grid storage, curtailment of some renewable generation, new transmission, and more responsive loads. NREL's electric system flexibility studies investigate the role of various electric system flexibility options on large-scale deployment of renewable energy. NREL's electric system flexibility analyses show that: Key factors in improving grid flexibility include (1) increasing the

52

Flathead Electric Cooperative Facility Geothermal Heat Pump System...  

Broader source: Energy.gov (indexed) [DOE]

Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade Project Will Take Advantage of...

53

FAQS Job Task Analyses - Electrical Systems and Safety Oversight...  

Office of Environmental Management (EM)

Electrical Systems and Safety Oversight FAQS Job Task Analyses - Electrical Systems and Safety Oversight FAQS Job Task Analyses are performed on the Function Area Qualification...

54

Concept for Management of the Future Electricity System (Smart...  

Open Energy Info (EERE)

Management of the Future Electricity System (Smart Grid Project) Jump to: navigation, search Project Name Concept for Management of the Future Electricity System Country Denmark...

55

Electricity storage for short term power system service (Smart...  

Open Energy Info (EERE)

Electricity storage for short term power system service (Smart Grid Project) Jump to: navigation, search Project Name Electricity storage for short term power system service...

56

The renewable electric plant information system  

SciTech Connect (OSTI)

This report explains the procedures used for creating the Renewable Electric Plant Information System (REPiS) database, describes the database fields, and summarizes the data. The REPiS database contains comprehensive information on grid-connected renewable electric generation plants in the United States. Originally designed in 1987 and updated in 1990, the database includes information through 1994. The report also illustrates ways of using the data for analysis is and describes how researchers validated the data.

Sinclair, K.

1995-12-01T23:59:59.000Z

57

Securing Electrical Power System Operation  

Science Journals Connector (OSTI)

Automation in power systems has a very long tradition. Just recall the flyball governor in a steam engine and it becomes clear that power people have been using control principles and instruments for more th...

Petr Horacek PhD

2009-01-01T23:59:59.000Z

58

Impact of extensive residential solar water heating on power system losses  

Science Journals Connector (OSTI)

South Africa is in the grips of an electricity crisis. Currently, the bulk of power is produced at coal fired power stations which are located far from the large load centres. Solar energy is widely available in South Africa, and could be used to complement this coal based generation, and supply energy at the point of use. This paper aims to investigate the impact of residential solar water heating on power system transmission losses. Initially simulations were carried out in order to determine the impact of solar water heating on a household's electricity demand. These were done for households located in Cape Town, Johannesburg and Durban. A number of solar water heating installations in Cape Town were also monitored, in order to validate the simulation results. Lastly, a power system model was developed in order to investigate the possible impact of large-scale implementation of solar water heating, at varied penetration levels, on a transmission system. Using the model and the results obtained from the simulations, a utility impact analysis was carried out in order to determine the effect on transmission losses. It was concluded that large-scale implementation of solar water heating can be used as a means to alleviate loading and losses on power systems' transmission lines particularly during peak demand.

K.P. Ijumba; A.B. Sebitosi; P. Pillay; K. Folly

2009-01-01T23:59:59.000Z

59

Reduction in tribological energy losses in the transportation and electric utilities sectors  

SciTech Connect (OSTI)

This report is part of a study of ways and means of advancing the national energy conservation effort, particularly with regard to oil, via progress in the technology of tribology. The report is confined to two economic sectors: transportation, where the scope embraces primarily the highway fleets, and electric utilities. Together these two sectors account for half of the US energy consumption. Goal of the study is to ascertain the energy sinks attributable to tribological components and processes and to recommend long-range research and development (R and D) programs aimed at reducing these losses. In addition to the obvious tribological machine components such as bearings, piston rings, transmissions and so on, the study also extends to processes which are linked to tribology indirectly such as wear of machine parts, coatings of blades, high temperature materials leading to higher cycle efficiencies, attenuation of vibration, and other cycle improvements.

Pinkus, O.; Wilcock, D.F.; Levinson, T.M.

1985-09-01T23:59:59.000Z

60

Influence of radiation defects on electrical losses in silicon diodes irradiated with electrons  

SciTech Connect (OSTI)

Silicon diodes with a p{sup +}-n junction irradiated with 3.5-MeV electrons (the fluence ranged from 10{sup 15} to 4 x 10{sup 16} cm{sup -2}) have been studied. It is established that the dependence of the tangent of the angle of electrical losses tan{delta} on the frequency f of alternating current in the range f = 10{sup 2}-10{sup 6} Hz is a nonmonotonic function with two extrema: a minimum and a maximum. Transformation of the dependences tan{delta}(f) as the electron fluence and annealing temperature are increased is caused by a variation in the resistance of n-Si (the base region of the diodes) as a result of accumulation (as the fluence is increased) or disappearance and reconfiguration (in the course of annealing) of radiation defects. The role of time lag of the defect recharging in the formation of tan{delta}(f) is insignificant.

Poklonski, N. A., E-mail: poklonski@bsu.by; Gorbachuk, N. I. [Belarussian State University (Belarus); Shpakovski, S. V. [Transistor Plant Unitary Enterprise, Integral (Belarus); Lastovskii, S. B. [Scientific-Practical Materials Research Center of National Academy of Sciences of Belarus State Scientific and Production Association (Belarus); Wieck, A. [Ruhr-Universitaet Bochum (Germany)

2010-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

System Losses Study - FIT (Fuel-cycle Integration and Tradeoffs)  

SciTech Connect (OSTI)

This team aimed to understand the broad implications of changes of operating performance and parameters of a fuel cycle component on the entire system. In particular, this report documents the study of the impact of changing the loss of fission products into recycled fuel and the loss of actinides into waste. When the effort started in spring 2009, an over-simplified statement of the objective was “the number of nines” – how would the cost of separation, fuel fabrication, and waste management change as the number of nines of separation efficiency changed. The intent was to determine the optimum “losses” of TRU into waste for the single system that had been the focus of the Global Nuclear Energy Program (GNEP), namely sustained recycle in burner fast reactors, fed by transuranic (TRU) material recovered from used LWR UOX-51 fuel. That objective proved to be neither possible (insufficient details or attention to the former GNEP options, change in national waste management strategy from a Yucca Mountain focus) nor appropriate given the 2009-2010 change to a science-based program considering a wider range of options. Indeed, the definition of “losses” itself changed from the loss of TRU into waste to a generic definition that a “loss” is any material that ends up where it is undesired. All streams from either separation or fuel fabrication are products; fuel feed streams must lead to fuels with tolerable impurities and waste streams must meet waste acceptance criteria (WAC) for one or more disposal sites. And, these losses are linked in the sense that as the loss of TRU into waste is reduced, often the loss or carryover of waste into TRU or uranium is increased. The effort has provided a mechanism for connecting these three Campaigns at a technical level that had not previously occurred – asking smarter and smarter questions, sometimes answering them, discussing assumptions, identifying R&D needs, and gaining new insights. The FIT model has been a forcing function, helping the team in this endeavor. Models don’t like “TBD” as an input, forcing us to make assumptions and see if they matter. A major addition in FY 2010 was exploratory analysis of “modified open fuel” cycles, employing “minimum fuel treatment” as opposed to full aqueous or electrochemical separation treatment. This increased complexity in our analysis and analytical tool development because equilibrium conditions do not appear sustainable in minimum fuel treatment cases, as was assumed in FY 2009 work with conventional aqueous and electrochemical separation. It is no longer reasonable to assume an equilibrium situation exists in all cases.

Steven J. Piet; Nick R. Soelberg; Samuel E. Bays; Robert S. Cherry; Denia Djokic; Candido Pereira; Layne F. Pincock; Eric L. Shaber; Melissa C. Teague; Gregory M. Teske; Kurt G. Vedros

2010-09-01T23:59:59.000Z

62

Louisville Electric System | Open Energy Information  

Open Energy Info (EERE)

Louisville Electric System Louisville Electric System Jump to: navigation, search Name Louisville Electric System Place Mississippi Utility Id 11247 Utility Location Yes Ownership M NERC Location SERC NERC SERC Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png General Power 2 Commercial General Power 3 Commercial General Power- 1 Commercial Lighting- 1000W HPS Lighting Lighting- 1000W Metal Halide Lighting Lighting- 100W HPS Lighting Lighting- 175W Mercury Vapor Lighting Lighting- 200W HPS Lighting Lighting- 250W HPS Lighting Lighting- 250W Metal Halide Lighting

63

NREL: Electric Infrastructure Systems Research - Distributed Energy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Distributed Energy Resources Test Facility Distributed Energy Resources Test Facility NREL's Distributed Energy Resources Test Facility (DERTF) is a working laboratory for interconnection and systems integration testing. This state-of-the-art facility includes generation, storage, and interconnection technologies as well as electric power system equipment capable of simulating a real-world electric system. Photo of the Distributed Energy Resources Test Facility and an adjacent solar photovoltaic array. The Distributed Energy Resources Test Facility is located at the National Wind Technology Center near Boulder, Colorado. Take a virtual tour of the DERTF. Researchers at the facility can vary equipment configurations and introduce common electrical disturbances such as sags, swells, and harmonic issues on

64

MIT Electric Vehicle Team Porsche designing a cooling system for the AC24 electric motor  

E-Print Network [OSTI]

In this thesis I worked on the design and analysis of a cooling system for the electric motor of the MIT Electric Vehicle Team's Porsche 914 Battery Electric Vehicle. The vehicle's Azure Dynamics AC24 motor tended to ...

Meenen, Jordan N

2010-01-01T23:59:59.000Z

65

Blackout 2003: Transcript of Technical Conference with the Electric System  

Broader source: Energy.gov (indexed) [DOE]

Transcript of Technical Conference with the Electric Transcript of Technical Conference with the Electric System Investigation Team Blackout 2003: Transcript of Technical Conference with the Electric System Investigation Team Electric System Investigation Team: 8 Reliability Recommendation consultation Transcript of the technical conference sponsored by the U.S. Canada task force investigating the August 14, 2003 blackout across Canada and the Northeastern United States. The transcript includes reports and discussions from the Electric System Investigation team on reliability recommendations. ELECTRIC SYSTEM INVESTIGATION TEAM : 8 RELIABILITY RECOMMENDATION CONSULTATION More Documents & Publications 2009 National Electric Transmission Congestion Study - Oklahoma City Workshop 2009 National Electric Transmission Congestion Study - San Francisco

66

Implementation of optimum solar electricity generating system  

Science Journals Connector (OSTI)

Under the 10th Malaysian Plan the government is expecting the renewable energy to contribute approximately 5.5% to the total electricity generation by the year 2015 which amounts to 98MW. One of the initiatives to ensure that the target is achievable was to establish the Sustainable Energy Development Authority of Malaysia. SEDA is given the authority to administer and manage the implementation of the feed-in tariff (FiT) mechanism which is mandated under the Renewable Energy Act 2011. The move to establish SEDA is commendable and the FiT seems to be attractive but there is a need to create awareness on the implementation of the solar electricity generating system (SEGS). In Malaysia harnessing technologies related to solar energy resources have great potential for implementation. However the main issue that plagues the implementation of SEGS is the intermittent nature of this source of energy. The availability of sunlight is during the day time and there is a need for electrical energy storage system so that there is electricity available during the night time as well. The meteorological condition such as clouds haze and pollution affects the SEGS as well. The PV based SEGS is seems to be promising electricity generating system that can contribute towards achieving the 5.5% target and will be able to minimize the negative effects of utilizing fossil fuels for electricity generation on the environment. Malaysia is committed to Kyoto Protocol which emphasizes on fighting global warming by achieving stabilization of greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic interference with the climate system. In this paper the technical aspects of the implementation of optimum SEGS is discussed especially pertaining to the positioning of the PV panels.

2014-01-01T23:59:59.000Z

67

Oscillation control system for electric motor drive  

DOE Patents [OSTI]

A feedback system for controlling mechanical oscillations in the torsionally complaint drive train of an electric or other vehicle. Motor speed is converted in a processor to estimate state signals in which a plant model which are used to electronically modify thetorque commands applied to the motor.

Slicker, James M. (Union Lake, MI); Sereshteh, Ahmad (Union Lake, MI)

1988-01-01T23:59:59.000Z

68

Mid-South Metallurgical Makes Electrical and Natural Gas System...  

Broader source: Energy.gov (indexed) [DOE]

Mid-South Metallurgical Makes Electrical and Natural Gas System Upgrades to Reduce Energy Use and Achieve Cost Savings Mid-South Metallurgical Makes Electrical and Natural Gas...

69

Electric System Decision Making in Other Regions: A Preliminary...  

Broader source: Energy.gov (indexed) [DOE]

Analysis Prepared for Western Interstate Energy Board Committee on Regional Electric Power Cooperation Electric System Decision Making in Other Regions: A Preliminary...

70

Advanced Systems of Efficient Use of Electrical Energy SURE ...  

Open Energy Info (EERE)

of Efficient Use of Electrical Energy SURE (Smart Grid Project) Jump to: navigation, search Project Name Advanced Systems of Efficient Use of Electrical Energy SURE Country...

71

Electricity for road transport, flexible power systems and wind...  

Open Energy Info (EERE)

Electricity for road transport, flexible power systems and wind power (Smart Grid Project) Jump to: navigation, search Project Name Electricity for road transport, flexible power...

72

Electric System Update: Sunday August 17, 2003 | Department of...  

Broader source: Energy.gov (indexed) [DOE]

electric transmission system is now operating reliably. All electric power transmission lines that were removed from service during the blackout on August 14, 2003, have been...

73

Sevier County Electric System | Open Energy Information  

Open Energy Info (EERE)

System System Jump to: navigation, search Name Sevier County Electric System Place Tennessee Utility Id 16949 Utility Location Yes Ownership M NERC Location SERC NERC SERC Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Commercial Rate- GSA1 Commercial Commercial Rate- GSA2 Commercial Commercial Rate- GSA3 Commercial Residential Rate Residential Average Rates Residential: $0.0925/kWh Commercial: $0.0984/kWh Industrial: $0.0834/kWh References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a" Retrieved from "http://en.openei.org/w/index.php?title=Sevier_County_Electric_System&oldid=411506

74

Sudden loss of mass from a binary gravitating system  

Science Journals Connector (OSTI)

A recent discussion by Mitalas is generalized to treat sudden mass loss from a binary system in an originally e l l i p t i c a l orbit. Emphasis is placed on characterizing the orbits by angular momentum and energy and it is shown that none of the changes in the r e l a t i v e orbit depends on which object loses part of its mass; indeed in principle each could lose a different fraction. Time averages are introduced so that the orbital changes which depend on w h e r e in orbit the mass loss occurs can be suitably averaged over a statistical ensemble of initial systems. Although I present several results that appear to be new (such as a unique relation between the increase in the semimajor axis and the change in eccentricity independent of the orbital phase at the moment of mass loss) the main thrust is to choose and manipulate variables yielding the greatest economy of description and the greatest power of computation. (All calculations were easily done on a pocket calculator.) Graphs are presented showing the fraction of systems that on the average will be disrupted the mean orbital changes for the survivors (which can easily turn out to have s m a l l e r mean eccentricity than the progenitors) and the extreme limits for the change in eccentricity.

Peter D. Noerdlinger

1982-01-01T23:59:59.000Z

75

Solar-Electric Dish Stirling System Development  

SciTech Connect (OSTI)

Electrical power generated with the heat from the sun, called solar thermal power, is produced with three types of concentrating solar systems - trough or line-focus systems; power towers in which a centrally-located thermal receiver is illuminated with a large field of sun-tracking heliostats; and dish/engine systems. A special case of the third type of system, a dish/Stirling system, is the subject of this paper. A dish/Stirling system comprises a parabolic dish concentrator, a thermal receiver, and a Stirling engine/generator located at the focus of the dish. Several different dish/Stirling systems have been built and operated during the past 15 years. One system claims the world record for net conversion of solar energy to electric power of 29.4%; and two different company`s systems have accumulated thousands of hours of on-sun operation. Due to de-regulation and intense competition in global energy markets as well as the immaturity of the technology, dish/Stirling systems have not yet found their way into the marketplace. This situation is changing as solar technologies become more mature and manufacturers identify high-value niche markets for their products. In this paper, I review the history of dish/Stirling system development with an emphasis on technical and other issues that directly impact the Stirling engine. I also try to provide some insight to the opportunities and barriers confronting the application of dish/Stirling in power generation markets.

Mancini, T.R.

1997-12-31T23:59:59.000Z

76

ESE 680: Special Topics in Electrical and Systems Engineering Modern Electrical Energy Infrastructure  

E-Print Network [OSTI]

Fall 2012 ESE 680: Special Topics in Electrical and Systems Engineering Modern Electrical Energy is on the study of modern electrical energy networks with the thesis that they are becoming an increasingly integration between the electrical energy infrastructure and other infrastructure systems. Instructors: Ufuk

Plotkin, Joshua B.

77

Electricity Consumption Simulation Based on Multi-agent System  

Science Journals Connector (OSTI)

In order to simulate impact on electricity of macroeconomic policy and foreign trade, Electricity Consumption Simulation System (ECMAS) was established based ... according to I/O table and data of electricity consumption

Minjie Xu; Zhaoguang Hu; Baoguo Shan…

2009-01-01T23:59:59.000Z

78

El Paso Electric photovoltaic-system analyses  

SciTech Connect (OSTI)

Four analyses were performed on the Newman Power Station PV system. Two were performed using the Photovoltaic Transient Analysis Program (PV-TAP) and two with the SOLCEL II code. The first was to determine the optimum tilt angle for the array and the sensitivity of the annual energy production to variation in tilt angle. The optimum tilt angle was found to be 28/sup 0/, and variations of 2/sup 0/ produce losses of only 0.06% in the annual energy production. The second analysis assesses the power loss due to cell-to-cell variations in short circuit current and the degree of improvement attainable by sorting cells and matching modules. Typical distributions on short circuit current can cause losses of about 9.5 to 11 percent in peak array power, and sorting cells into 4 bins prior to module assembly can reduce the losses to about 6 to 8 percent. Using modules from the same cell bins in building series strings can reduce the losses to about 4.5 to 6 percent. Results are nearly the same if the array is operated at a fixed votage. The third study quantifies the magnitude and frequency of occurrence of high cell temperatures due to reverse bias caused by shadowing, and it demonstrates that cell temperatures achieved in reverse bias are higher for cells with larger shunt resistance. The last study assesses the adequacy of transient protection devices on the dc power lines to transients produced by array switching and lightning. Large surge capacitors on the dc power line effectively limit voltage excursions at the array and at the control room due to lightning. Without insertion of series resistors, the current may be limited only by cable and switch impedances, and all elements could be severely stressed. (LEW)

Not Available

1982-05-01T23:59:59.000Z

79

Lincoln Electric System | Open Energy Information  

Open Energy Info (EERE)

Lincoln Electric System Lincoln Electric System Place Nebraska Utility Id 11018 Utility Location Yes Ownership M NERC Location MRO NERC MRO Yes RTO SPP Yes Operates Generating Plant Yes Activity Generation Yes Activity Transmission Yes Activity Buying Transmission Yes Activity Distribution Yes Activity Wholesale Marketing Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] Energy Information Administration Form 826[2] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png 1000 W Mercury Vapor- Security Light Lighting 150 W High Pressure Sodium - Security Light Lighting 175 W Mercury Vapor- Security Light Lighting 250 W High Pressure Sodium - Security Light Lighting

80

Sliding Mode Control of EV Electric Differential System  

E-Print Network [OSTI]

of an electric differential system for Electric Vehicle (EV) with two induction motor drives (one for each wheel of electric drives to control the generated torque and the introduction of an independent control400 1 Sliding Mode Control of EV Electric Differential System A. Haddoun, M. E. H. Benbouzid, D

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

JFE Electrical and Control Systems | Open Energy Information  

Open Energy Info (EERE)

Systems Jump to: navigation, search Name: JFE Electrical and Control Systems Place: Japan Product: Electronic power, automation and control systems maker which also makes PV...

82

Beam Loss Ion Chamber System Upgrade for Experimental Halls  

SciTech Connect (OSTI)

The Beam loss Ion Chamber System (BLICS) was developed to protect Jefferson Labs transport lines, targets and beam dumps from a catastrophic ''burn through''. Range changes and testing was accomplished manually requiring the experiment to be shut down. The new upgraded system is based around an ''off the shelf'' Programmable Logic Controller located in a single control box supporting up to ten individual detectors. All functions that formerly required an entry into the experimental hall and manual adjustment can be accomplished from the Machine Control Center (MCC). A further innovation was the addition of a High Voltage ''Brick'' at the detector location. A single cable supplies the required voltage for the Brick and a return line for the ion chamber signal. The read back screens display range, trip point, and accumulated dose for each location. The new system is very cost effective and significantly reduces the amount of lost experimental time.

D.W. Dotson; D.J. Seidman

2005-05-16T23:59:59.000Z

83

Integration of Electric Propulsion Systems with Spacecraft An Overview  

E-Print Network [OSTI]

electric propulsion systems are currently being developed ­ ranging from high-power (i.e., >10 kW) systems-propulsion systems to be used on small satellites? In the context of direct-drive electric propulsion? 1 Research1 Integration of Electric Propulsion Systems with Spacecraft ­ An Overview Thomas M. Liu1

Walker, Mitchell

84

DOE Action Plan Addressing the Electricity Distribution System  

Broader source: Energy.gov (indexed) [DOE]

ACTION PLAN ACTION PLAN ADDRESSING THE ELECTRICITY DISTRIBUTION SYSTEM ~DRAFT~ DOE Action Plan Addressing the Electricity Distribution System 1 Table of Contents INTRODUCTION ................................................................................................................... 2 The Grid Tech Team ................................................................................................ 2 Focus on Distribution .............................................................................................. 3 Roadmap Goals ....................................................................................................... 3 PROCESS OVERVIEW ........................................................................................................... 4

85

System transient response to loss of off-site power  

SciTech Connect (OSTI)

A simultaneous trip of the reactor, main circulation pumps, secondary coolant pumps, and pressurizer pump due to loss of off-site power at the High Flux Isotope Reactor (HFIR) located at the Oak Ridge National Laboratory (ORNL) has been analyzed to estimate available safety margin. A computer model based on the Modular Modeling System code has been used to calculate the transient response of the system. The reactor depressurizes from 482.7 psia down to about 23 psia in about 50 seconds and remains stable thereafter. Available safety margin has been estimated in terms of the incipient boiling heat flux ratio. It is a conservative estimate due to assumed less than available primary and secondary flows and higher than normal depressurization rate. The ratio indicates no incipient boiling conditions at the hot spot. No potential damage to the fuel is likely to occur during this transient. 2 refs., 6 figs.

Sozer, A.

1990-01-01T23:59:59.000Z

86

Hybrid Wind and Solar Electric Systems | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Hybrid Wind and Solar Electric Systems Hybrid Wind and Solar Electric Systems Hybrid Wind and Solar Electric Systems July 2, 2012 - 8:21pm Addthis Because the peak operating times for wind and solar systems occur at different times of the day and year, hybrid systems are more likely to produce power when you need it. Because the peak operating times for wind and solar systems occur at different times of the day and year, hybrid systems are more likely to produce power when you need it. How does it work? A small "hybrid" electric system that combines wind and solar technologies can offer several advantages over either single system. According to many renewable energy experts, a small "hybrid" electric system that combines home wind electric and home solar electric (photovoltaic or PV) technologies offers several advantages over either

87

Interrogator system for identifying electrical circuits  

DOE Patents [OSTI]

A system for interrogating electrical leads to correctly ascertain the identity of equipment attached to remote ends of the leads is disclosed. The system includes a source of a carrier signal generated in a controller/receiver to be sent over the leads and an identifier unit at the equipment. The identifier is activated by command of the carrier and uses a portion of the carrier to produce a supply voltage. Each identifier is uniquely programmed for a specific piece of equipment, and causes the impedance of the circuit to be modified whereby the carrier signal is modulated according to that program. The modulation can be amplitude, frequency or phase modulation. A demodulator in the controller/receiver analyzes the modulated carrier signal, and if a verified signal is recognized displays and/or records the information. This information can be utilized in a computer system to prepare a wiring diagram of the electrical equipment attached to specific leads. Specific circuit values are given for amplitude modulation, and the system is particularly described for use with thermocouples. 6 figs.

Jatko, W.B.; McNeilly, D.R.

1988-04-12T23:59:59.000Z

88

Bella Energy formely Sun Electric Systems | Open Energy Information  

Open Energy Info (EERE)

Energy formely Sun Electric Systems Energy formely Sun Electric Systems Jump to: navigation, search Name Bella Energy (formely Sun Electric Systems) Place Lafayette, Colorado Zip 80026 Sector Solar Product Solar electric company which offers residential and commercial solar power to customers in Colorado both on and off the grid. References Bella Energy (formely Sun Electric Systems)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Bella Energy (formely Sun Electric Systems) is a company located in Lafayette, Colorado . References ↑ "Bella Energy (formely Sun Electric Systems)" Retrieved from "http://en.openei.org/w/index.php?title=Bella_Energy_formely_Sun_Electric_Systems&oldid=342665

89

Planning a Small Wind Electric System | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Small Wind Electric System Small Wind Electric System Planning a Small Wind Electric System July 15, 2012 - 4:11pm Addthis Small wind electric systems require planning to determine if there is enough wind, the location is appropriate, if wind systems are allowed, and if the system will be economical. | Photo courtesy of Bergey WindPower. Small wind electric systems require planning to determine if there is enough wind, the location is appropriate, if wind systems are allowed, and if the system will be economical. | Photo courtesy of Bergey WindPower. What are the key facts? Careful planning helps to ensure that your small wind electric system project goes smoothly and is economical at your location. During planning, you will find out if there is enough wind to operate the system, if the location is appropriate, if wind systems are

90

Lincoln Electric System | Open Energy Information  

Open Energy Info (EERE)

System System (Redirected from LES) Jump to: navigation, search Name Lincoln Electric System Place Nebraska Utility Id 11018 Utility Location Yes Ownership M NERC Location MRO NERC MRO Yes RTO SPP Yes Operates Generating Plant Yes Activity Generation Yes Activity Transmission Yes Activity Buying Transmission Yes Activity Distribution Yes Activity Wholesale Marketing Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] Energy Information Administration Form 826[2] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png 1000 W Mercury Vapor- Security Light Lighting 150 W High Pressure Sodium - Security Light Lighting 175 W Mercury Vapor- Security Light Lighting

91

Oilfield Flare Gas Electricity Systems (OFFGASES Project)  

SciTech Connect (OSTI)

The Oilfield Flare Gas Electricity Systems (OFFGASES) project was developed in response to a cooperative agreement offering by the U.S. Department of Energy (DOE) and the National Energy Technology Laboratory (NETL) under Preferred Upstream Management Projects (PUMP III). Project partners included the Interstate Oil and Gas Compact Commission (IOGCC) as lead agency working with the California Energy Commission (CEC) and the California Oil Producers Electric Cooperative (COPE). The project was designed to demonstrate that the entire range of oilfield 'stranded gases' (gas production that can not be delivered to a commercial market because it is poor quality, or the quantity is too small to be economically sold, or there are no pipeline facilities to transport it to market) can be cost-effectively harnessed to make electricity. The utilization of existing, proven distribution generation (DG) technologies to generate electricity was field-tested successfully at four marginal well sites, selected to cover a variety of potential scenarios: high Btu, medium Btu, ultra-low Btu gas, as well as a 'harsh', or high contaminant, gas. Two of the four sites for the OFFGASES project were idle wells that were shut in because of a lack of viable solutions for the stranded noncommercial gas that they produced. Converting stranded gas to useable electrical energy eliminates a waste stream that has potential negative environmental impacts to the oil production operation. The electricity produced will offset that which normally would be purchased from an electric utility, potentially lowering operating costs and extending the economic life of the oil wells. Of the piloted sites, the most promising technologies to handle the range were microturbines that have very low emissions. One recently developed product, the Flex-Microturbine, has the potential to handle the entire range of oilfield gases. It is deployed at an oilfield near Santa Barbara to run on waste gas that is only 4% the strength of natural gas. The cost of producing oil is to a large extent the cost of electric power used to extract and deliver the oil. Researchers have identified stranded and flared gas in California that could generate 400 megawatts of power, and believe that there is at least an additional 2,000 megawatts that have not been identified. Since California accounts for about 14.5% of the total domestic oil production, it is reasonable to assume that about 16,500 megawatts could be generated throughout the United States. This power could restore the cost-effectiveness of thousands of oil wells, increasing oil production by millions of barrels a year, while reducing emissions and greenhouse gas emissions by burning the gas in clean distributed generators rather than flaring or venting the stranded gases. Most turbines and engines are designed for standardized, high-quality gas. However, emerging technologies such as microturbines have increased the options for a broader range of fuels. By demonstrating practical means to consume the four gas streams, the project showed that any gases whose properties are between the extreme conditions also could be utilized. The economics of doing so depends on factors such as the value of additional oil recovered, the price of electricity produced, and the alternate costs to dispose of stranded gas.

Rachel Henderson; Robert Fickes

2007-12-31T23:59:59.000Z

92

SunShot Initiative: Deployable Commercial Rooftop Solar Electric System  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Deployable Commercial Rooftop Deployable Commercial Rooftop Solar Electric System to someone by E-mail Share SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Facebook Tweet about SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Twitter Bookmark SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Google Bookmark SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Delicious Rank SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Digg Find More places to share SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on AddThis.com... Concentrating Solar Power Photovoltaics Systems Integration Research, Development, & Demonstration Competitive Awards Solar Utility Networks: Replicable Innovations in Solar Energy

93

Empowering Variable Renewables: Options for Flexible Electricity Systems |  

Open Energy Info (EERE)

Empowering Variable Renewables: Options for Flexible Electricity Systems Empowering Variable Renewables: Options for Flexible Electricity Systems Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Empowering Variable Renewables: Options for Flexible Electricity Systems Agency/Company /Organization: International Energy Agency Sector: Energy Focus Area: Renewable Energy Topics: Market analysis, Technology characterizations Resource Type: Publications Website: www.iea.org/g8/2008/Empowering_Variable_Renewables.pdf Empowering Variable Renewables: Options for Flexible Electricity Systems Screenshot References: Empowering Variable Renewables: Options for Flexible Electricity Systems[1] Summary "Increasing the share of renewables in energy portfolios is a key tool in the drive to reduce anthropogenic carbon dioxide emissions, as well as

94

Garrett Electric Boosting Systems (EBS) Program  

SciTech Connect (OSTI)

Turbo diesel engine use in passenger cars in Europe has resulted in 30-50% improvement in fuel economy. Diesel engine application is particularly suitable for US because of vehicle size and duty cycle patterns. Adopting this technology for use in the US presents two issues--emissions and driveability. Emissions reduction technology is being well addressed with advanced turbocharging, fuel injection and catalytic aftertreatment systems One way to address driveability is to eliminate turbo lag and increase low speed torque. Electrically assisted turbocharging concepts incorporated in e-Turbo{trademark} designs do both The purpose of this project is to design and develop an electrically assisted turbocharger, e-Turbo{trademark}, for diesel engine use in the US. In this report, early design and development of electrical assist technology is described together with issues and potential benefits. In this early phase a mathematical model was developed and verified. The model was used in a sensitivity study. The results of the sensitivity study together with the design and test of first generation hardware was fed into second generation designs. In order to fully realize the benefits of electrical assist technology it was necessary to expand the scope of work to include technology on the compressor side as well as electronic controls concepts. The results of the expanded scope of work are also reported here. In the first instance, designs and hardware were developed for a small engine to quantify and demonstrate benefits. The turbo size was such that it could be applied in a bi-turbo configuration to an SUV sized V engine. Mathematical simulation was used to quantify the possible benefits in an SUV application. It is shown that low speed torque can be increased to get the high performance expected in US, automatic transmission vehicles. It is also shown that e-Turbo{trademark} can be used to generate modest amounts of electrical power and supplement the alternator under most load-speed conditions. It is shown that a single (large) e-Turbo{trademark} consumes slightly less electrical power for the same steady state torque shaping than a bi-Turbo configuration. However, the transient response of a bi-Turbo configuration is slightly better. It was shown that in order to make full use of additional capabilities of e-Turbo{trademark} wide compressor flow range is required. Variable geometry compressor (VGC) technology developed under a separate project was evaluated for incorporation into e-Turbo{trademark} designs. It was shown that the combination of these two technologies enables very high torque at low engine speeds. Designs and hardware combining VGC and e-Turbo{trademark} are to be developed in a future project. There is concern about high power demands (even though momentary) of e-Turbo{trademark}. Reducing the inertia of the turbocharger can reduce power demand and increase battery life. Low inertia turbocharger technology called IBT developed under a separate project was evaluated for synergy with e-Turbo{trademark} designs. It was concluded that inertial reduction provided by IBT is very beneficial for e-Turbo{trademark}. Designs and hardware combining IBT and e-Turbo{trademark} are to be developed in a future project. e-Turbo{trademark} provides several additional flexibilities including exhaust gas recirculation (EGR) for emissions reduction with minimum fuel economy penalty and exhaust temperature control for aftertreatment. In integrated multi-parameter control system is needed to realize the full potential of e-Turbo{trademark} performance. Honeywell expertise in process control systems involving hundreds of sensors and actuators was applied to demonstrate the potential benefits of multi-parameter, model based control systems.

Steve Arnold; Craig Balis; Pierre Barthelet; Etienne Poix; Tariq Samad; Greg Hampson; S. M. Shahed

2005-03-31T23:59:59.000Z

95

Installing and Maintaining a Small Wind Electric System | Department of  

Broader source: Energy.gov (indexed) [DOE]

Installing and Maintaining a Small Wind Electric System Installing and Maintaining a Small Wind Electric System Installing and Maintaining a Small Wind Electric System July 2, 2012 - 8:22pm Addthis Installing and Maintaining a Small Wind Electric System What does this mean for me? When installing a wind system, the location of the system, the energy budget for the site, the size of the system, and the height of the tower are important elements to consider. Deciding whether to connect the system to the electric grid or not is also an important decision. If you went through the planning steps to evaluate whether a small wind electric system will work at your location, you will already have a general idea about: The amount of wind at your site The zoning requirements and covenants in your area The economics, payback, and incentives of installing a wind system

96

NREL: Fleet Test and Evaluation - Hybrid Electric Drive Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Hybrid Electric Drive Systems Hybrid Electric Drive Systems The Fleet Test and Evaluation Team conducts performance evaluations of hybrid electric drive systems in fleets of delivery vehicles and transit buses. Hybrid electric drive systems combine a primary power source, an energy storage system, and an electric motor to achieve a combination of emissions, fuel economy, and range benefits unattainable with any of these technologies alone. Hybrid electric drive systems use less petroleum-based fuel and capture energy created during breaking and idling. This collected energy is used to propel the vehicle during normal drive cycles. The batteries supply additional power for acceleration and hill climbing. Learn more about the team's hybrid electric drive system evaluations: Delivery Vehicles

97

ELECTRICAL SYSTEMS AND SAFETY OVERSIGHT QUALIFICATION STANDARD REFERENCE GUIDE  

Broader source: Energy.gov (indexed) [DOE]

Electrical Electrical Systems and Safety Oversight Qualification Standard Reference Guide DECEMBER 2009 This page is intentionally blank. Table of Contents i. i LIST OF FIGURES ..................................................................................................................... vi LIST OF TABLES ..................................................................................................................... viii ACRONYMS ................................................................................................................................ ix PURPOSE ...................................................................................................................................... 1 SCOPE ........................................................................................................................................... 1

98

Current Generated Harmonics and Their Effect Upon Electrical Industrial Systems  

E-Print Network [OSTI]

This paper provides a general overview of harmonics and addresses the causes of current generated harmonics in electrical systems. In addition, problems caused by current generated harmonics and their affects upon different types of electrical...

Alexander, H. R.; Rogge, D. S.

99

Electricity Bill Savings from Residential Photovoltaic Systems: Sensitivities to Changes in Future Electricity Market Conditions  

E-Print Network [OSTI]

schemes on power prices: The case of wind electricity inand Wind Penetration. IEEE Transactions on Power Systems 27,of wind (50%), PV (35%), and concentrating solar power (CSP,

Darghouth, Naim

2014-01-01T23:59:59.000Z

100

Two-stage electric generator system  

SciTech Connect (OSTI)

The system described herein is particularly adapted to convert mechanical energy from a wind or hydraulic driven turbine into electric energy and comprises: an exciter generator and a main generator in a housing traversed by a rotatable shaft; the exciter generator consists of permanent magnet mounted to the housing envelope and of a rotor mounted to the shaft and having a one-phase winding, the rotor being made of non-magnetic material to eliminate cogging and static torque associated with permanent magnet excitation; the main generator consists of a three-phase stator winding on a magnetic core mounted to the housing envelope and of a pole-type rotor mounted to the shaft, the rotor having a winding wound on a magnetic core; a rectifying bridge is rotatably mounted to the shaft and is connected to the one-phase winding of the rotor of the exciter generator and to the winding of the main generator rotor so that the rotation of the shaft as a result of mechanical energy generates a three-phase electric energy output from the stator winding.

Leroux, A.

1981-09-29T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Toward Standards for Dynamics in Electric Energy Systems  

E-Print Network [OSTI]

Toward Standards for Dynamics in Electric Energy Systems Future Grid Initiative White Paper Power Systems Engineering Research Center Empowering Minds to Engineer the Future Electric Energy System #12 Engineering Research Center The Power Systems Engineering Research Center (PSERC) is a multi-university Center

102

Farmington Electric Utility System - Net Metering | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Farmington Electric Utility System - Net Metering Farmington Electric Utility System - Net Metering Farmington Electric Utility System - Net Metering < Back Eligibility Residential Savings Category Energy Sources Buying & Making Electricity Solar Home Weatherization Water Wind Program Info State New Mexico Program Type Net Metering Provider Farmington Electric Utility System Net metering rules developed by the New Mexico Public Regulation Commission (PRC) apply to the state's investor-owned utilities and electric cooperatives. Municipal utilities, which are not regulated by the commission, are exempt from the PRC rules but authorized to develop their own net metering programs. Farmington Electric, a municipal utility, offers net metering to residential customers with systems up to 10 kilowatts (kW) in capacity.

103

Supplementing Electrical Power Through Solar PV Systems  

Science Journals Connector (OSTI)

Dhaka megacity is home to more than 14 million inhabitants. However, the adequate supply of urban utilities, particularly electricity to city dwellers, has ... supply in Dhaka, electricity generation through roof...

Md. Humayun Kabir; Wilfried Endlicher

2014-01-01T23:59:59.000Z

104

Electrical system architecture having high voltage bus  

DOE Patents [OSTI]

An electrical system architecture is disclosed. The architecture has a power source configured to generate a first power, and a first bus configured to receive the first power from the power source. The architecture also has a converter configured to receive the first power from the first bus and convert the first power to a second power, wherein a voltage of the second power is greater than a voltage of the first power, and a second bus configured to receive the second power from the converter. The architecture further has a power storage device configured to receive the second power from the second bus and deliver the second power to the second bus, a propulsion motor configured to receive the second power from the second bus, and an accessory motor configured to receive the second power from the second bus.

Hoff, Brian Douglas (East Peoria, IL); Akasam, Sivaprasad (Peoria, IL)

2011-03-22T23:59:59.000Z

105

Category:Smart Grid Projects - Electric Distributions Systems | Open Energy  

Open Energy Info (EERE)

Distributions Systems category. Distributions Systems category. Pages in category "Smart Grid Projects - Electric Distributions Systems" The following 13 pages are in this category, out of 13 total. A Atlantic City Electric Company Smart Grid Project Avista Utilities Smart Grid Project C Consolidated Edison Company of New York, Inc. Smart Grid Project E El Paso Electric Smart Grid Project H Hawaii Electric Co. Inc. Smart Grid Project M Memphis Light, Gas and Water Division Smart Grid Project Municipal Electric Authority of Georgia Smart Grid Project N Northern Virginia Electric Cooperative Smart Grid Project NSTAR Electric Company Smart Grid Project P Powder River Energy Corporation Smart Grid Project P cont. PPL Electric Utilities Corp. Smart Grid Project S Snohomish County Public Utilities District Smart Grid Project

106

Advanced Electric Traction System Technology Development  

SciTech Connect (OSTI)

As a subcontractor to General Motors (GM), Ames Laboratory provided the technical expertise and supplied experimental materials needed to assess the technology of high energy bonded permanent magnets that are injection or compression molded for use in the Advanced Electric Traction System motor. This support was a sustained (Phase 1: 6/07 to 3/08) engineering effort that builds on the research achievements of the primary FreedomCAR project at Ames Laboratory on development of high temperature magnet alloy particulate in both flake and spherical powder forms. Ames Lab also provide guidance and direction in selection of magnet materials and supported the fabrication of experimental magnet materials for development of injection molding and magnetization processes by Arnold Magnetics, another project partner. The work with Arnold Magnetics involved a close collaboration on particulate material design and processing to achieve enhanced particulate properties and magnetic performance in the resulting bonded magnets. The overall project direction was provided by GM Program Management and two design reviews were held at GM-ATC in Torrance, CA. Ames Lab utilized current expertise in magnet powder alloy design and processing, along with on-going research advances being achieved under the existing FreedomCAR Program project to help guide and direct work during Phase 1 for the Advanced Electric Traction System Technology Development Program. The technical tasks included review of previous GM and Arnold Magnets work and identification of improvements to the benchmark magnet material, Magnequench MQP-14-12. Other benchmark characteristics of the desired magnet material include 64% volumetric loading with PPS polymer and a recommended maximum use temperature of 200C. A collaborative relationship was maintained with Arnold Magnets on the specification and processing of the bonded magnet material required by GM-ATC.

Anderson, Iver

2011-01-14T23:59:59.000Z

107

Reliability of Beam Loss Monitors System for the Large Hadron Collider  

E-Print Network [OSTI]

The employment of superconducting magnets, in the high energies colliders, opens challenging failure scenarios and brings new criticalities for the whole system protection. For the LHC beam loss protection system, the failure rate and the availability requirements have been evaluated using the Safety Integrity Level (SIL) approach. A downtime cost evaluation is used as input for the SIL approach. The most critical systems, which contribute to the final SIL value, are the dump system, the interlock system, the beam loss monitors system and the energy monitor system. The Beam Loss Monitors System (BLMS) is critical for short and intense particles losses, while at medium and higher loss time it is assisted by other systems, such as the quench protection system and the cryogenic system. For BLMS, hardware and software have been evaluated in detail. The reliability input figures have been collected using historical data from the SPS, using temperature and radiation damage experimental data as well as using standar...

Guaglio, Gianluca; Santoni, C

2004-01-01T23:59:59.000Z

108

HEMP emergency planning and operating procedures for electric power systems  

SciTech Connect (OSTI)

Investigations of the impact of high-altitude electromagnetic pulse (HEMP) on electric power systems and electrical equipment have revealed that HEMP creates both misoperation and failures. These events result from both the early time E[sub 1] (steep-front pulse) component and the late time E[sub 3] (geomagnetic perturbations) component of HEMP. In this report a HEMP event is viewed in terms of its marginal impact over classical power system disturbances by considering the unique properties and consequences of HEMP. This report focuses on system-wide electrical component failures and their potential consequences from HEMP. In particular, the effectiveness of planning and operating procedures for electric systems is evaluated while under the influence of HEMP. This assessment relies on published data and characterizes utilities using the North American Electric Reliability Council's regions and guidelines to model electric power system planning and operations. Key issues addressed by the report include how electric power systems are affected by HEMP and what actions electric utilities can initiate to reduce the consequences of HEMP. The report also reviews the salient features of earlier HEMP studies and projects, examines technology trends in the electric power industry which are affected by HEMP, characterizes the vulnerability of power systems to HEMP, and explores the capability of electric systems to recover from a HEMP event.

Reddoch, T.W.; Markel, L.C. (Electrotek Concepts, Inc., Knoxville, TN (United States))

1991-01-01T23:59:59.000Z

109

Tenderness, drip loss, and postmortem metabilism of broiler pectoralis from electrically stimulated and air chilled carcasses  

E-Print Network [OSTI]

humidity of 9 1 % and an air speed of 43.9 m3/minute. Pre-chill and post-chill carcass weights were measured to determine drip loss. Breast fillets were harvested at 2 and 4h postmortem from both ES and control carcasses and also at 8 h postmortem from...

Skarovsky, Clinton John

1997-01-01T23:59:59.000Z

110

System for the co-production of electricity and hydrogen  

DOE Patents [OSTI]

Described herein is a system for the co-generation of hydrogen gas and electricity, wherein the proportion of hydrogen to electricity can be adjusted from 0% to 100%. The system integrates fuel cell technology for power generation with fuel-assisted steam-electrolysis. A hydrocarbon fuel, a reformed hydrocarbon fuel, or a partially reformed hydrocarbon fuel can be fed into the system.

Pham, Ai Quoc (San Jose, CA); Anderson, Brian Lee (Lodi, CA)

2007-10-02T23:59:59.000Z

111

DOE Hydrogen Analysis Repository: Policy Office Electricity Modeling System  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Policy Office Electricity Modeling System (POEMS) Policy Office Electricity Modeling System (POEMS) Project Summary Full Title: Policy Office Electricity Modeling System (POEMS) Project ID: 93 Principal Investigator: Lessly Goudarzi Purpose Designed and built by OnLocation specifically to address electricity industry restructuring issues Performer Principal Investigator: Lessly Goudarzi Organization: OnLocation, Inc. Address: Suite 300, 501 Church Street Vienna, VA 22180 Telephone: 703-938-5151 Email: goudarzi@onlocationinc.com Project Description Type of Project: Model Category: Energy Infrastructure Products/Deliverables Description: National Transmission Grid Study - Appendix A Publication Title: Policy Office Electricty Modeling System (POEMS) and Documentation for Transmission Analysis (PDF 461 KB) Download Adobe Reader.

112

AFTER A Framework for electrical power sysTems vulnerability...  

Open Energy Info (EERE)

Germany) Jump to: navigation, search Project Name AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration Country Germany Coordinates...

113

System Simulations of Hybrid Electric Vehicles with Focus on...  

Broader source: Energy.gov (indexed) [DOE]

System Simulations of Hybrid Electric Vehicles with Focus on Emissions Zhiming Gao Veerathu K. Chakravarthy Josh Pihl C. Stuart Daw Maruthi Devarakonda Jong Lee...

114

Electric Grid - Forecasting system licensed | ornl.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Electric Grid - Forecasting system licensed Location Based Technologies has signed an agreement to integrate and market an Oak Ridge National Laboratory technology that provides...

115

Voltage stabilization system in traction substation of urban electric transport  

Science Journals Connector (OSTI)

The direct current-voltage stabilization system using a high-frequency link in traction substations of urban electric transport based on applying...

S. V. Shapiro; S. F. Muftiev

2011-02-01T23:59:59.000Z

116

EIS-0416: Ivanpah Solar Electric Generating System in San Bernardino...  

Broader source: Energy.gov (indexed) [DOE]

Generating System (07-AFC-5) Project, Proposal to Construct a 400-m Megawatt Concentrated Solar Power Tower, Thermal-Electric Power Plant, San Bernardino County, California July 1,...

117

FAQS Reference Guide – Electrical Systems and Safety Oversight  

Broader source: Energy.gov [DOE]

This reference guide addresses the competency statements in the August 2007 edition of DOE-STD-1170-2007, Electrical Systems and Safety Oversight Functional Area Qualification Standard.

118

Homeowners Guide to Leasing a Solar Electric System (Brochure)  

SciTech Connect (OSTI)

This updated fact sheet provides an introduction to solar leases for homeowners who are considering installing a solar electric system on their home.

Not Available

2014-07-01T23:59:59.000Z

119

Battery Power for Your Residential Solar Electric System: Better Buildings Series Solar Electric Fact Sheet  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ELECTRIC ELECTRIC Battery Power for Your Residential Solar Electric System A Winning Combination-Design, Efficiency, and Solar Technology A battery bank stores electricity produced by a solar electric system. If your house is not connected to the utility grid, or if you antici- pate long power outages from the grid, you will need a battery bank. This fact sheet pro- vides an overview of battery basics, including information to help you select and maintain your battery bank. Types of Batteries There are many types of batteries avail- able, and each type is designed for specific applications. Lead-acid batteries have been used for residential solar electric systems for many years and are still the best choice for this application because of their low mainte- nance requirements and cost. You may

120

A novel Electricity Marketing Model Integrating Intelligent Disaster-Recovery System  

Science Journals Connector (OSTI)

Considering the unexpected events, such as floods, fires, hurricanes, and even terrorist attacks, this paper discusses an integration model of electricity marketing system. The novel system consists of the wireless communication mode, computer networks, GPRS satellite positioning system and GIS power distribution system. This model aims at the intelligent disaster recovery system and the overall recovery plan for disaster recovery. Moreover, the marketing information systems are aiming at enhancing the ability to resist disasters and major incidents and reducing the disaster which is caused by combat and the loss of accidents. Finally, the paper suggests how this system could reduce the adverse effects on electricity customers and the whole society, to ensure that information systems provide critical business functions in the disaster time after resumption and continuation of operation.

Shi Li; Zeng Ming; Li Lingyun

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Advanced Integrated Electric Traction System | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

"Mega" Merit Review 2008 on February 25, 2008 in Bethesda, Maryland. merit08smith.pdf More Documents & Publications Advnaced Power Electronics and Electric Machines...

122

Installing and Maintaining a Home Solar Electric System | Department of  

Broader source: Energy.gov (indexed) [DOE]

Installing and Maintaining a Home Solar Electric System Installing and Maintaining a Home Solar Electric System Installing and Maintaining a Home Solar Electric System July 2, 2012 - 8:21pm Addthis When choosing a contractor, ask about their work record, experience, and licenses, and get more than one bid for the installation of your PV system. | Photo courtesy of Dennis Schroeder, NREL. When choosing a contractor, ask about their work record, experience, and licenses, and get more than one bid for the installation of your PV system. | Photo courtesy of Dennis Schroeder, NREL. How does it work? Making sure your home solar electric or PV system is sized, sited, and installed correctly is essential for maximizing its energy performance. As with any mechanical or electrical appliance, PV systems require routine, periodic maintenance.

123

Installing and Maintaining a Home Solar Electric System | Department of  

Broader source: Energy.gov (indexed) [DOE]

Installing and Maintaining a Home Solar Electric System Installing and Maintaining a Home Solar Electric System Installing and Maintaining a Home Solar Electric System July 2, 2012 - 8:21pm Addthis When choosing a contractor, ask about their work record, experience, and licenses, and get more than one bid for the installation of your PV system. | Photo courtesy of Dennis Schroeder, NREL. When choosing a contractor, ask about their work record, experience, and licenses, and get more than one bid for the installation of your PV system. | Photo courtesy of Dennis Schroeder, NREL. How does it work? Making sure your home solar electric or PV system is sized, sited, and installed correctly is essential for maximizing its energy performance. As with any mechanical or electrical appliance, PV systems require routine, periodic maintenance.

124

Balancing Energy Consumption and Food Quality Loss in Supermarket Refrigeration System  

E-Print Network [OSTI]

Balancing Energy Consumption and Food Quality Loss in Supermarket Refrigeration System J. Cai and J- tion of commercial refrigeration system, featuring balanced system energy consumption and food quality energy consumption and food quality loss, at varying ambient condition, in a supermarket refrigeration

Skogestad, Sigurd

125

On the Trade-off between Energy Consumption and Food Quality Loss in Supermarket Refrigeration Systems  

E-Print Network [OSTI]

On the Trade-off between Energy Consumption and Food Quality Loss in Supermarket Refrigeration on optimizing objective functions such as overall energy consumption, system efficiency, capacity, or wear systems, featuring a balanced system energy consumption and food quality loss. A former developed quality

Skogestad, Sigurd

126

An analysis of the reliability of the Los Alamos National Laboratory electrical system  

SciTech Connect (OSTI)

This paper discusses the results of a study of the reliability of the Los Alamos National Laboratory electrical system and an assessment of the risk arising from power interruptions and outages. Our study was intended to provide a current status of the system and to rank upgrades to improve the system. In this study, we used fault-tree analysis, cause-consequence analysis, and directed graphs. The study resulted in a ranking of the relative importance of the consequences of power loss to various Los Alamos technical sites and facilities, sets of equipment whose failure will lead to loss of power to the sites, and statistical estimates of the frequency of power loss to sites and facilities. 1 tab.

Bott, T.F.

1990-01-01T23:59:59.000Z

127

Review of experiments to evaluate the ability of electrical heater rods to simulate nuclear fuel rod behavior during postulated loss-of-coolant accidents in light water reactors  

SciTech Connect (OSTI)

Issues related to using electrical fuel rod simulators to simulate nuclear fuel rod behavior during postulated loss-of-coolant accident (LOCA) conditions in light water reactors are summarized. Experimental programs which will provide a data base for comparing electrical heater rod and nuclear fuel rod LOCA responses are reviewed.

McPherson, G D; Tolman, E L

1980-01-01T23:59:59.000Z

128

Captured key electrical safety lockout system  

DOE Patents [OSTI]

A safety lockout apparatus for an electrical circuit includes an electrical switch, a key, a lock and a blocking mechanism. The electrical switch is movable between an ON position at which the electrical circuit is energized and an OFF position at which the electrical circuit is deactivated. The lock is adapted to receive the key and is rotatable among a plurality of positions by the key. The key is only insertable and removable when the lock is at a preselected position. The lock is maintained in the preselected position when the key is removed from the lock. The blocking mechanism physically maintains the switch in its OFF position when the key is removed from the lock. The blocking mechanism preferably includes a member driven by the lock between a first position at which the electrical switch is movable between its ON and OFF positions and a second position at which the member physically maintains the electrical switch in its OFF position. Advantageously, the driven member`s second position corresponds to the preselected position at which the key can be removed from and inserted into the lock. 7 figs.

Darimont, D.E.

1995-10-31T23:59:59.000Z

129

Captured key electrical safety lockout system  

SciTech Connect (OSTI)

A safety lockout apparatus for an electrical circuit includes an electrical switch, a key, a lock and a blocking mechanism. The electrical switch is movable between an ON position at which the electrical circuit is energized and an OFF position at which the electrical circuit is deactivated. The lock is adapted to receive the key and is rotatable among a plurality of positions by the key. The key is only insertable and removable when the lock is at a preselected position. The lock is maintained in the preselected position when the key is removed from the lock. The blocking mechanism physically maintains the switch in its OFF position when the key is removed from the lock. The blocking mechanism preferably includes a member driven by the lock between a first position at which the electrical switch is movable between its ON and OFF positions and a second position at which the member physically maintains the electrical switch in its OFF position. Advantageously, the driven member's second position corresponds to the preselected position at which the key can be removed from and inserted into the lock.

Darimont, Daniel E. (Aurora, IL)

1995-01-01T23:59:59.000Z

130

DOE Action Plan Addressing the Electricity Transmission System  

Broader source: Energy.gov (indexed) [DOE]

U.S. DEPARTMENT OF ENERGY U.S. DEPARTMENT OF ENERGY ACTION PLAN ADDRESSING THE ELECTRICITY TRANSMISSION SYSTEM ~DRAFT~ DOE Action Plan Addressing the Electricity Transmission System 1 Table of Contents * INTRODUCTION ................................................................................................................... 2 The Grid Tech Team ...................................................................................................... 2 Focus on Transmission .................................................................................................. 3 Roadmap Goals ............................................................................................................. 4 * PROCESS OVERVIEW ........................................................................................................... 5

131

Electrical power systems protection and interdependencies with ICT  

Science Journals Connector (OSTI)

This section discusses the protection of electrical power systems (EPS) and its relation to the supporting Information and Communication Technologies (ICT) infrastructure. Several dimensions are addressed, ranging from the need of protection and available ... Keywords: critical infrastructures, disturbance, electrical power system, interdependencies, protection

George M. Milis; Elias Kyriakides; Antonis M. Hadjiantonis

2012-01-01T23:59:59.000Z

132

CyberPhysical System Security for the Electric Power Grid  

E-Print Network [OSTI]

INVITED P A P E R Cyber­Physical System Security for the Electric Power Grid Control in power research efforts aimed at enhancing the smart grid's application and infrastructure security. Finally­physical systems (CPS); cyber security; electric grid; smart grid; supervisory control and data acquisi- tion

Manimaran, Govindarasu

133

Electric System Decision Making in Other Regions: A Preliminary Analysis  

Broader source: Energy.gov (indexed) [DOE]

Decision Making in Other Regions: A Preliminary Decision Making in Other Regions: A Preliminary Analysis Prepared for Western Interstate Energy Board Committee on Regional Electric Power Cooperation Electric System Decision Making in Other Regions: A Preliminary Analysis Prepared for Western Interstate Energy Board Committee on Regional Electric Power Cooperation The nation's electricity system is regional in nature, because of the operation of the interconnected grids and the markets defined by them. Over the years, many regional organizations of utilities and governments have formed to manage and oversee these markets. Electric System Decision Making in Other Regions: A Preliminary Analysis Prepared for Western Interstate Energy Board Committee on Regional Electric Power Cooperation More Documents & Publications

134

Braess' Paradox in a simple electric power system  

E-Print Network [OSTI]

and pricing in the restructured electricity industry. Using a small-scale test network and assuming DC load lines in the system are upgraded. In these systems, locational prices (as currently used

Blumsack, Seth

135

Electric drive systems in compressor stations with stochastic perturbations  

Science Journals Connector (OSTI)

Electric-drive operation in compressor stations for gas-transport systems is considered. Principles of organization ... proposed, so as to ensure that the gas-pumping equipment and the systems for air cooling of ...

O. V. Kryukov

2013-03-01T23:59:59.000Z

136

Computer-aided design of electrical energy systems  

Science Journals Connector (OSTI)

Electrical energy systems (EESs) include energy generation, distribution, storage, and consumption, and involve many diverse components and sub-systems to implement these tasks. This paper represents a first step towards the computer-aided design for ...

Younghyun Kim; Donghwa Shin; Massimo Petricca; Sangyoung Park; Massimo Poncino; Naehyuck Chang

2013-11-01T23:59:59.000Z

137

FAQS Qualification Card - Electrical Systems and Safety Oversight |  

Broader source: Energy.gov (indexed) [DOE]

Qualification Card - Electrical Systems and Safety Oversight Qualification Card - Electrical Systems and Safety Oversight FAQS Qualification Card - Electrical Systems and Safety Oversight A key element for the Department's Technical Qualification Programs is a set of common Functional Area Qualification Standards (FAQS) and associated Job Task Analyses (JTA). These standards are developed for various functional areas of responsibility in the Department, including oversight of safety management programs identified as hazard controls in Documented Safety Analyses (DSA). For each functional area, the FAQS identify the minimum technical competencies and supporting knowledge and skills for a typical qualified individual working in the area. FAQC-ElectricalSystemsAndSafetyOversight .docx Description Electrical Systems and Safety Oversight Qualification Card

138

Electrical Transmission Systems and Smart Grids , Introduction  

Science Journals Connector (OSTI)

The structure and function of electric substations is also changing rapidly. Substations represent a vital part of the power grid infrastructure with many important functions (ability to reconfigure the syste...

Dr. Miroslav M. Begovic

2012-01-01T23:59:59.000Z

139

Loss of normal feedwater ATWS for Vogtle Electric Generating Plant using RETRAN-02.  

E-Print Network [OSTI]

??With the ever advancing state of computer systems, it is imperative to maintain the most up-to-date and reliable safety evaluation data for nuclear power systems.… (more)

Rader, Jordan D.

2009-01-01T23:59:59.000Z

140

Electricity Transmission System Workshop: EERE Issues and Opportunities  

Broader source: Energy.gov (indexed) [DOE]

Electricity Transmission System Electricity Transmission System Workshop: EERE Issues and Opportunities November 1, 2012 Dr. David Danielson Assistant Secretary for the Office of Energy Efficiency and Renewable Energy eere.energy.gov "If you can't solve a problem, expand it." - Dwight D. Eisenhower eere.energy.gov eere.energy.gov Stationary Energy Demand Transport Energy Supply Deploy Clean Electricity Deploy Alternative Hydrocarbon Fuels Modernize the Grid Electrify the Fleet Increase Building and Industrial Efficiency Increase Vehicle Efficiency Source: DOE ,Quadrennial Technology Review, September 2011 eere.energy.gov Rapid Growth in Renewable Electricity Since 2008, the U.S. has doubled renewable energy generation from wind, solar, and

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Modeling Methodology for Component Reuse and System Integration for Hurricane Loss Projection Application  

E-Print Network [OSTI]

Modeling Methodology for Component Reuse and System Integration for Hurricane Loss Projection Distributed Multimedia Information System Laboratory School of Computing and Information Sciences Florida International University, Miami, FL 33199, USA 2 Department of Finance Florida International University, Miami

Chen, Shu-Ching

142

Analysis of various all-electric-ship electrical distribution system topologies  

E-Print Network [OSTI]

As advances in technology mature, the need is evident for a coherent simulation of the total electric-drive ship to model the effect of new systems on the overall performance of the vessel. Our laboratory has been developing ...

Chalfant, Julie

143

Reference Model for Control and Automation Systems in Electrical Power |  

Broader source: Energy.gov (indexed) [DOE]

Model for Control and Automation Systems in Electrical Model for Control and Automation Systems in Electrical Power Reference Model for Control and Automation Systems in Electrical Power Modern infrastructure automation systems are threatened by cyber attack. Their higher visibility in recent years and the increasing use of modern information technology (IT) components contribute to increased security risk. A means of analyzing these infrastructure automation systems is needed to help understand and study the many system relationships that affect the overall security of the system. Modeling these systems is a very cost effective means of addressing the problem of security from an overall system view. The model presented in the document below provides a structured, cost effective approach to address technical security in process control systems

144

Irrigation Districts: Establishment of Electric Light and Power Systems:  

Broader source: Energy.gov (indexed) [DOE]

Irrigation Districts: Establishment of Electric Light and Power Irrigation Districts: Establishment of Electric Light and Power Systems: Powers (Nebraska) Irrigation Districts: Establishment of Electric Light and Power Systems: Powers (Nebraska) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Water Buying & Making Electricity Home Weatherization Program Info State Nebraska Program Type Siting and Permitting Provider Natural Resources Irrigation districts, created in section 46-1xx, are encouraged to

145

Supermarket refrigeration assessment for the New England Electric System  

SciTech Connect (OSTI)

The Electric Power Research Institute (EPRI) has undertaken a project to assess the impact of energy efficient supermarket refrigeration on the electric capacity requirements of the New England Electric System (NEES) service territories. The leading supermarket chains in the NEES service territories were contacted and the number of supermarkets and the types of refrigeration systems employed were established. Estimates were then made of the potential demand and energy savings that NEES and the supermarkets could realize if energy efficient refrigeration systems were employed. On the basis of this analysis, possible incentives to accelerate the implementation of energy efficient refrigeration equipment in NEES service territories were recommended. 4 refs., 10 figs., 27 tabs.

Tsaros, T.L.; Walker, D.H. (Foster-Miller, Inc., Waltham, MA (United States))

1991-07-01T23:59:59.000Z

146

Impact of Natural Gas Infrastructure on Electric Power Systems  

E-Print Network [OSTI]

Impact of Natural Gas Infrastructure on Electric Power Systems MOHAMMAD SHAHIDEHPOUR, FELLOW, IEEE of electricity has introduced new risks associated with the security of natural gas infrastructure on a sig the essence of the natural gas infrastructure for sup- plying the ever-increasing number of gas-powered units

Fu, Yong

147

Gainesville Regional Utilities - Solar-Electric (PV) System Rebate Program  

Broader source: Energy.gov (indexed) [DOE]

Gainesville Regional Utilities - Solar-Electric (PV) System Rebate Gainesville Regional Utilities - Solar-Electric (PV) System Rebate Program Gainesville Regional Utilities - Solar-Electric (PV) System Rebate Program < Back Eligibility Residential Savings Category Solar Buying & Making Electricity Maximum Rebate $5,000 Program Info Start Date 10/1/2010 State Florida Program Type Utility Rebate Program Rebate Amount Solar window of 80% or more: $1.00/watt Provider Gainesville Regional Utilities '''''NOTE: Application targets for fiscal year 2013 have been met for the GRU Solar PV Rebate Program. The next round of applications are scheduled to open on October 1, 2013 pending approval of the GRU budget by the Gainesville City Commission.''''' Gainesville Regional Utilities (GRU) offers its customers a rebate to install photovoltaic (PV) systems. Systems with solar windows of 80% or

148

EIA - The National Energy Modeling System: An Overview 2003-Electricity  

Gasoline and Diesel Fuel Update (EIA)

Electricity Market Module Electricity Market Module The National Energy Modeling System: An Overview 2003 Electricity Market Module Figure 9. Electricity Market Module Structure. Need help, contact the National Energy Information Center at 202-586-8800. Figure 10. Electricity Market Module Supply Regions. Need help, contact the National Energy Information Center at 202-586-8800. Electricity Market Module Table. Need help, contact the National Energy Information Center at 202-586-8800. Central-Station Generating Technologies. Need help, contact the National Energy Information Center at 202-586-8800. 2002 Overnight Capital Costs (including Contingencies), 2002 Heat Rates, and Online Year by Technology for the AEO2003 Reference Case Table. Need help, contact the National Energy Information Center at 202-586-8800.

149

TWRS privatization phase 1 electrical power system  

SciTech Connect (OSTI)

This document includes Conceptual Design Report (CDR) for a new 11 km (7 miles) 230 kV transmission line and a new 40 MVA substation (A6) which will be located east of Grout Facility in 200E Area tank farm. This substation will provide electrical power up to 20 MW each for two private contractor facilities for immobilization and disposal of low activity waste (LAW).

Singh, G.

1997-05-30T23:59:59.000Z

150

Quantifying the system balancing cost when wind energy is incorporated into electricity generation system.  

E-Print Network [OSTI]

??Incorporation of wind energy into the electricity generation system requires a detailed analysis of wind speed in order to minimize system balancing cost and avoid… (more)

Issaeva, Natalia

2009-01-01T23:59:59.000Z

151

EA-1851: Delphi Automotive Systems Electric Drive Vehicle Battery and  

Broader source: Energy.gov (indexed) [DOE]

EA-1851: Delphi Automotive Systems Electric Drive Vehicle Battery EA-1851: Delphi Automotive Systems Electric Drive Vehicle Battery and Component Manufacturing Initiative EA-1851: Delphi Automotive Systems Electric Drive Vehicle Battery and Component Manufacturing Initiative Summary This EA evaluates the environmental impacts of a proposal to provide a financial assistance grant under the American Recovery and Reinvestment Act of 2009 (ARRA) to Delphi Automotive Systems, Limited Liability Corporation (LLC) (Delphi). Delphi proposes to construct a laboratory referred to as the "Delphi Kokomo, IN Corporate Technology Center" (Delphi CTC Project) and retrofit a manufacturing facility. The project would advance DOE's Vehicle Technology Program through manufacturing and testing of electric-drive vehicle components as well as assist in the

152

Control system design for a parallel hybrid electric vehicle  

E-Print Network [OSTI]

This thesis addresses the design of control systems for a parallel hybrid electric drive train which is an alternative to conventional passenger vehicles. The principle components of the drive train are a small internal combustion engine...

Buntin, David Leighton

1994-01-01T23:59:59.000Z

153

CVD facility electrical system captor/dapper study  

SciTech Connect (OSTI)

Project W-441, CVD Facility Electrical System CAPTOWDAPPER Study validates Meier's hand calculations. This study includes Load flow, short circuit, voltage drop, protective device coordination, and transient motor starting (TMS) analyses.

SINGH, G.

1999-10-28T23:59:59.000Z

154

Ultracapacitor/Battery Hybrid Energy Storage Systems for Electric Vehicles.  

E-Print Network [OSTI]

??This thesis deals with the design of Hybrid Energy Storage System (HESS) for Light Electric Vehicles (LEV) and EVs. More specifically, a tri-mode high-efficiency non-isolated… (more)

Moshirvaziri, Mazhar

2012-01-01T23:59:59.000Z

155

High Performance Computing in Electrical Energy Systems Applications  

Science Journals Connector (OSTI)

This chapter presents a review of the main application areas of high performance computing in electrical energy systems and introduces some results obtained with ... obtained with tests conducted using actual mod...

Djalma M. Falcao; Carmen L. T. Borges…

2013-01-01T23:59:59.000Z

156

Environmental inventories for future electricity supply systems for Switzerland  

Science Journals Connector (OSTI)

The Swiss Association of Producers and Distributors of Electricity (VSE) identified a number of possible supply mix options to meet the future electricity demand in Switzerland. In this context, PSI, in co-operation with ETHZ, analysed environmental inventories for the selected electricity supply systems. Life Cycle Analysis (LCA) was used to establish the inventories, covering the complete energy chains associated with fossil, nuclear and renewable systems. The assessment was performed on three levels: (1) individually for each system considered; (2) comparison of systems; (3) comparison of supply mix options. In absolute value, the emissions of the major pollutants considered are, in most cases, significantly reduced in comparison with the currently operating systems. Due to the considerable advancements in fossil power plant technologies, the relative importance of other activities increases in the fossil energy systems. Selected results for systems and supply options are given in the present paper.

R. Dones; U.; Ganter; S. Hirschberg

1999-01-01T23:59:59.000Z

157

ADVANCED WIRELESS CHARGING SYSTEM FOR PORTABLE ELECTRIC DEVICES  

E-Print Network [OSTI]

within a power network and microgrids. The formulation and im- plementation of the optimal surfaces are presented, in addition to experimental validation of the new power buffer control law. Index Terms?DC power systems, differential game, distributed... control, nonlinear systems, power buffers. I. INTRODUCTION INA LOCAL area electrical power networks, such as a mi-crogrids [1] or electric ships [2], all components of the sys- tem, including sources, loads, and distribution have multiple commitments...

Liu, Jianyang

2012-04-19T23:59:59.000Z

158

Optimization of Electric Energy in Three-Phase Induction Motor by Balancing of Torque and Flux Dependent Losses  

Science Journals Connector (OSTI)

This paper presents the solution of the energy optimal control of three-phase induction motor (IM) by balancing of torque and flux dependent losses. First, we build formula of total losses of motor (iron losse...

Nguyen Thanh Hung; Nguyen Chi Thien…

2014-01-01T23:59:59.000Z

159

High energy-resolution electron energy-loss spectroscopy study of the electric structure of double-walled carbon nanotubes  

Science Journals Connector (OSTI)

......High energy-resolution electron energy-loss spectroscopy study of the...Egerton R F. (1986) Electron Energy-Loss Spectroscopy in the Electron Microscope , Plenum, New York. High energy-resolution electron energy-loss......

Yohei Sato; Masami Terauchi; Yahachi Saito; Riichiro Saito

2006-06-01T23:59:59.000Z

160

Reliability of Beam Loss Monitors System for the Large Hadron Collider  

Science Journals Connector (OSTI)

The employment of superconducting magnets in high energy colliders opens challenging failure scenarios and brings new criticalities for the whole system protection. For the LHC beam loss protection system the failure rate and the availability requirements have been evaluated using the Safety Integrity Level (SIL) approach. A downtime cost evaluation is used as input for the SIL approach. The most critical systems which contribute to the final SIL value are the dump system the interlock system the beam loss monitors system and the energy monitor system. The Beam Loss Monitors System (BLMS) is critical for short and intense particle losses while at medium and higher loss time it is assisted by other systems such as the quench protection system and the cryogenic system. For BLMS hardware and software have been evaluated in detail. The reliability input figures have been collected using historical data from the SPS using temperature and radiation damage experimental data as well as using standard databases. All the data have been processed by reliability software (Isograph). The analysis ranges from the components data to the system configuration.

G. Guaglio; B. Dehning; C. Santoni

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Reliability of Beam Loss Monitor Systems for the Large Hadron Collider  

Science Journals Connector (OSTI)

The increase of beam energy and beam intensity together with the use of super conducting magnets opens new failure scenarios and brings new criticalities for the whole accelerator protection system. For the LHC beam loss protection system the failure rate and the availability requirements have been evaluated using the Safety Integrity Level (SIL) approach. A downtime cost evaluation is used as input for the SIL approach. The most critical systems which contribute to the final SIL value are the dump system the interlock system the beam loss monitors system and the energy monitor system. The Beam Loss Monitors System (BLMS) is critical for short and intense particles losses at 7 TeV and assisted by the Fast Beam Current Decay Monitors at 450 GeV. At medium and higher loss time it is assisted by other systems such as the quench protection system and the cryogenic system. For BLMS hardware and software have been evaluated in detail. The reliability input figures have been collected using historical data from the SPS using temperature and radiation damage experimental data as well as using standard databases. All the data has been processed by reliability software (Isograph). The analysis spaces from the components data to the system configuration.

G. Guaglio; B. Dehning; C. Santoni

2005-01-01T23:59:59.000Z

162

Electric, Gas, and Electric/Gas Energy Options for Cold-Air HVAC Systems  

E-Print Network [OSTI]

An important aspect of the design of cost-effective HVAC systems today is (a) sensitivity to the cost impact of the interplay of utility demand charges, time-of-day rates, gas rates, and gas/electric utility incentive programs vis-à-vis HVAC system...

Meckler, G.

1989-01-01T23:59:59.000Z

163

Category:Smart Grid Projects - Electric Transmission Systems | Open Energy  

Open Energy Info (EERE)

Transmission Systems category. Transmission Systems category. Pages in category "Smart Grid Projects - Electric Transmission Systems" The following 10 pages are in this category, out of 10 total. A American Transmission Company LLC II Smart Grid Project American Transmission Company LLC Smart Grid Project D Duke Energy Carolinas, LLC Smart Grid Project E Entergy Services, Inc. Smart Grid Project I ISO New England, Incorporated Smart Grid Project M Midwest Energy Inc. Smart Grid Project Midwest Independent Transmission System Operator Smart Grid Project N New York Independent System Operator, Inc. Smart Grid Project P PJM Interconnection, LLC Smart Grid Project W Western Electricity Coordinating Council Smart Grid Project Retrieved from "http://en.openei.org/w/index.php?title=Category:Smart_Grid_Projects_-_Electric_Transmission_Systems&oldid=214227

164

Electrical Collection and Transmission Systems for Offshore Wind Power: Preprint  

SciTech Connect (OSTI)

The electrical systems needed for offshore wind farms to collect power from wind turbines--and transmit it to shore--will be a significant cost element of these systems. This paper describes the development of a simplified model of the cost and performance of such systems.

Green, J.; Bowen, A.; Fingersh, L.J.; Wan, Y.

2007-03-01T23:59:59.000Z

165

Evaluation of 2004 Toyota Prius Hybrid Electric Drive System Interim Report  

SciTech Connect (OSTI)

Laboratory tests were conducted to evaluate the electrical and mechanical performance of the 2004 Toyota Prius and its hybrid electric drive system. As a hybrid vehicle, the 2004 Prius uses both a gasoline-powered internal combustion engine and a battery-powered electric motor as motive power sources. Innovative algorithms for combining these two power sources results in improved fuel efficiency and reduced emissions compared to traditional automobiles. Initial objectives of the laboratory tests were to measure motor and generator back-electromotive force (emf) voltages and determine gearbox-related power losses over a specified range of shaft speeds and lubricating oil temperatures. Follow-on work will involve additional performance testing of the motor, generator, and inverter. Information contained in this interim report summarizes the test results obtained to date, describes preliminary conclusions and findings, and identifies additional areas for further study.

Ayers, C.W.

2004-11-23T23:59:59.000Z

166

Operational Control of Electricity Supply Systems  

Science Journals Connector (OSTI)

... to develop, the common-diagram control system, which enables an almost unlimited number of substations, etc., to be controlled completely from one diagram and control panel, and is ... of an undertaking. It describes a wall-type system diagram which automatically indicates, which substations have changed conditions, and therefore the area involved in any disturbance. The system diagram ...

1945-09-22T23:59:59.000Z

167

Research on simulation of ship electric propulsion system with flywheel energy storage system  

Science Journals Connector (OSTI)

Flywheel energy storage has been widely used to ... electric power quality. This paper designed a flywheel energy storage device to improve ship electric propulsion system power grid quality. The practical mathem...

Chunling Xie; Conghui Zhang; Jen-Yuan James Chang

2011-06-01T23:59:59.000Z

168

Research on simulation of ship electric propulsion system with flywheel energy storage system  

Science Journals Connector (OSTI)

Flywheel energy storage has been widely used to improve the ground electric power quality. This paper designed a flywheel energy storage device to improve ship electric propulsion system power grid quality. The practical mathematical models of flywheel ...

Chunling Xie; Conghui Zhang; Jen-Yuan James Chang

2011-06-01T23:59:59.000Z

169

Closeout of IE Bulletin 80-15: Possible loss of Emergency Notification System (ENS) with loss of offsite power  

SciTech Connect (OSTI)

Documentation is provided in this report for the closeout of IE Bulletin 80-15 for nuclear power reactors. This bulletin pertained to a possible loss of the Emergency Notification System (ENS) upon loss of offsite power. Closeout is based on the implementation and verification of six (6) required actions by licensees of nuclear power reactors in operation or near to receiving an operating license when the bulletin was issued on June 18, 1980. Evaluation of utility responses and NRC/Region inspection reports indicates that the bulletin is closed for all of the 69 nuclear power reactors to which it was issued for action and which were not shut down indefinitely or permanently at the time of issuance of this report. Background information is supplied in the Introduction and Appendix A. Nuclear fuel facilities as well as nuclear power facilities were identified in the enclosures to the bulletin. However, per an NRC memorandum, the closeout of the bulletin for nuclear fuel facilities is not within the scope of this report.

Foley, W.J.; Dean, R.S.; Hennick, A. (Parameter, Inc., Elm Grove, WI (USA))

1990-12-01T23:59:59.000Z

170

Lagrangian Framework for Systems Composed of High-Loss and Lossless Components  

E-Print Network [OSTI]

Using a Lagrangian mechanics approach, we construct a framework to study the dissipative properties of systems composed of two components one of which is highly lossy and the other is lossless. We have shown in our previous work that for such a composite system the modes split into two distinct classes, high-loss and low-loss, according to their dissipative behavior. A principal result of this paper is that for any such dissipative Lagrangian system, with losses accounted by a Rayleigh dissipative function, a rather universal phenomenon occurs, namely, selective overdamping: The high-loss modes are all overdamped, i.e., non-oscillatory, as are an equal number of low-loss modes, but the rest of the low-loss modes remain oscillatory each with an extremely high quality factor that actually increases as the loss of the lossy component increases. We prove this result using a new time dynamical characterization of overdamping in terms of a virial theorem for dissipative systems and the breaking of an equipartition of energy.

Alex Figotin; Aaron Welters

2013-12-31T23:59:59.000Z

171

Improvements in the computation of balances and localization of commercial losses of electric energy in 0.38-kV networks  

SciTech Connect (OSTI)

An example of four 0.38-kV overhead distribution lines fed from a 10/0.4-kV transformer substation of the Grodno Electrical Networks (Belarus') and supplying electricity to a cottage area is used for analyzing energy balances and commercial losses in the networks. It is shown that the reliability of such analysis can be ensured by the use of modern software and electronic energy meters recording a retrospective of half-hourly intervals of active and reactive electric energy.

Vorotnitskii, V. Z.; Zaslonov, S. V.; Lysyuk, S. S. [Electric Power Research Institute (VNIIE) (Russian Federation)

2006-11-15T23:59:59.000Z

172

RELIABILITY PLANNING IN DISTRIBUTED ELECTRIC ENERGY SYSTEMS  

E-Print Network [OSTI]

applied to the case of hydroelectric facilities with large3. For comparison, the hydroelectric system in California asas droughts which reduce hydroelectric energy availability,

Kahn, E.

2011-01-01T23:59:59.000Z

173

Electrical energy storage systems: A comparative life cycle cost analysis  

Science Journals Connector (OSTI)

Abstract Large-scale deployment of intermittent renewable energy (namely wind energy and solar PV) may entail new challenges in power systems and more volatility in power prices in liberalized electricity markets. Energy storage can diminish this imbalance, relieving the grid congestion, and promoting distributed generation. The economic implications of grid-scale electrical energy storage technologies are however obscure for the experts, power grid operators, regulators, and power producers. A meticulous techno-economic or cost-benefit analysis of electricity storage systems requires consistent, updated cost data and a holistic cost analysis framework. To this end, this study critically examines the existing literature in the analysis of life cycle costs of utility-scale electricity storage systems, providing an updated database for the cost elements (capital costs, operational and maintenance costs, and replacement costs). Moreover, life cycle costs and levelized cost of electricity delivered by electrical energy storage is analyzed, employing Monte Carlo method to consider uncertainties. The examined energy storage technologies include pumped hydropower storage, compressed air energy storage (CAES), flywheel, electrochemical batteries (e.g. lead–acid, NaS, Li-ion, and Ni–Cd), flow batteries (e.g. vanadium-redox), superconducting magnetic energy storage, supercapacitors, and hydrogen energy storage (power to gas technologies). The results illustrate the economy of different storage systems for three main applications: bulk energy storage, T&D support services, and frequency regulation.

Behnam Zakeri; Sanna Syri

2015-01-01T23:59:59.000Z

174

Integrated Computing, Communication, and Distributed Control of Deregulated Electric Power Systems  

SciTech Connect (OSTI)

Restructuring of the electricity market has affected all aspects of the power industry from generation to transmission, distribution, and consumption. Transmission circuits, in particular, are stressed often exceeding their stability limits because of the difficulty in building new transmission lines due to environmental concerns and financial risk. Deregulation has resulted in the need for tighter control strategies to maintain reliability even in the event of considerable structural changes, such as loss of a large generating unit or a transmission line, and changes in loading conditions due to the continuously varying power consumption. Our research efforts under the DOE EPSCoR Grant focused on Integrated Computing, Communication and Distributed Control of Deregulated Electric Power Systems. This research is applicable to operating and controlling modern electric energy systems. The controls developed by APERC provide for a more efficient, economical, reliable, and secure operation of these systems. Under this program, we developed distributed control algorithms suitable for large-scale geographically dispersed power systems and also economic tools to evaluate their effectiveness and impact on power markets. Progress was made in the development of distributed intelligent control agents for reliable and automated operation of integrated electric power systems. The methodologies employed combine information technology, control and communication, agent technology, and power systems engineering in the development of intelligent control agents for reliable and automated operation of integrated electric power systems. In the event of scheduled load changes or unforeseen disturbances, the power system is expected to minimize the effects and costs of disturbances and to maintain critical infrastructure operational.

Bajura, Richard; Feliachi, Ali

2008-09-24T23:59:59.000Z

175

title Life Cycle Assessment of Electric Power Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Life Cycle Assessment of Electric Power Systems Life Cycle Assessment of Electric Power Systems journal Annual Review of Environment and Resources volume year month abstract p The application of life cycle assessment LCA to electric power EP technologies is a vibrant research pursuit that is likely to continue as the world seeks ways to meet growing electricity demand with reduced environmental and human health impacts While LCA is an evolving methodology with a number of barriers and challenges to its effective use LCA studies to date have clearly improved our understanding of the life cycle energy GHG emissions air pollutant emissions and water use implications of EP technologies With continued progress LCA offers promise for assessing and comparing EP technologies in an analytically thorough and environmentally holistic manner for more robust deployment

176

Model-Free Learning-Based Online Management of Hybrid Electrical Energy Storage Systems in Electric Vehicles  

E-Print Network [OSTI]

Model-Free Learning-Based Online Management of Hybrid Electrical Energy Storage Systems in Electric@elpl.snu.ac.kr Abstract--To improve the cycle efficiency and peak output power density of energy storage systems in electric vehicles (EVs), supercapacitors have been proposed as auxiliary energy storage elements

Pedram, Massoud

177

RELIABILITY PLANNING IN DISTRIBUTED ELECTRIC ENERGY SYSTEMS  

E-Print Network [OSTI]

mean value of load and its variance as follows: where W =as a function of load for a given system. This follows fromto some load W. We can write this as follows: LOLP = Prob [

Kahn, E.

2011-01-01T23:59:59.000Z

178

Renewable Electricity Futures Study. Volume 4: Bulk Electric Power Systems: Operations and Transmission Planning  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Bulk Electric Power Systems: Bulk Electric Power Systems: Operations and Transmission Planning Volume 4 of 4 Volume 2 PDF Volume 3 PDF Volume 1 PDF Volume 4 PDF NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Renewable Electricity Futures Study Edited By Hand, M.M. National Renewable Energy Laboratory Baldwin, S. U.S. Department of Energy DeMeo, E. Renewable Energy Consulting Services, Inc. Reilly, J.M. Massachusetts Institute of Technology Mai, T. National Renewable Energy Laboratory Arent, D. Joint Institute for Strategic Energy Analysis Porro, G. National Renewable Energy Laboratory Meshek, M. National Renewable Energy Laboratory Sandor, D. National Renewable

179

Life-Cycle Assessment of Electric Power Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Life-Cycle Assessment of Electric Power Systems Life-Cycle Assessment of Electric Power Systems Title Life-Cycle Assessment of Electric Power Systems Publication Type Journal Article Year of Publication 2013 Authors Masanet, Eric R., Yuan Chang, Anand R. Gopal, Peter H. Larsen, William R. Morrow, Roger Sathre, Arman Shehabi, and Pei Zhai Journal Annual Review of Environment and Resources Volume 38 Date Published 2013 Keywords electricity, energy policy, environmental analysis, life-cycle impact, life-cycle inventory Abstract The application of life-cycle assessment (LCA) to electric power (EP) technologies is a vibrant research pursuit that is likely to continue as the world seeks ways to meet growing electricity demand with reduced environmental and human health impacts. While LCA is an evolving methodology with a number of barriers and challenges to its effective use, LCA studies to date have clearly improved our understanding of the life-cycle energy, GHG emissions, air pollutant emissions, and water use implications of EP technologies. With continued progress, LCA offers promise for assessing and comparing EP technologies in an analytically-thorough and environmentally-holistic manner for more robust deployment decisions. This article summarizes: (1) major challenges in applying LCA to EP technologies thus far, (2) LCA results to date on the various impacts of EP technologies, and (3) opportunities for improving LCAs as applied to EP technologies moving forward.

180

Cold Vacuum Drying (CVD) Electrical System Design Description  

SciTech Connect (OSTI)

This document provides a technical explanation of the design and operation of the electrical system for the Cold Vacuum Drying Facility. This document identifies the requirements, and the basis for the requirements and details on how the requirements have been implemented in the design and construction of the facility. This document also provides general guidance for the surveillance, testing, and maintenance of this system.

BRISBIN, S.A.

1999-06-17T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Electric motor systems in developing countries: Opportunities for efficiency improvement  

SciTech Connect (OSTI)

This report presents an overview of the current status and efficiency improvement potential of industrial motor systems in developing countries. Better management of electric motor systems is of particular relevance in developing countries, where improved efficiency can lead to increased productivity and slower growth in electricity demand. Motor systems currently consume some 65--80% of the industrial electricity in developing countries. Drawing on studies from Thailand, India, Brazil, China, Pakistan, and Costa Rica, we describe potential efficiency gains in various parts of the motor system, from the electricity delivery system through the motor to the point where useful work is performed. We report evidence of a significant electricity conservation potential. Most of the efficiency improvement methods we examine are very cost-effective from a societal viewpoint, but are generally not implemented due to various barriers that deter their adoption. Drawing on experiences in North America, we discuss a range of policies to overcome these barriers, including education, training, minimum efficiency standards, motor efficiency testing protocols, technical assistance programs, and financial incentives.

Meyers, S.; Monahan, P.; Lewis, P.; Greenberg, S. [Lawrence Berkeley Lab., CA (United States); Nadel, S. [American Council for an Energy-Efficient Economy, Washington, DC (United States)

1993-08-01T23:59:59.000Z

182

HEMP emergency planning and operating procedures for electric power systems. Power Systems Technology Program  

SciTech Connect (OSTI)

Investigations of the impact of high-altitude electromagnetic pulse (HEMP) on electric power systems and electrical equipment have revealed that HEMP creates both misoperation and failures. These events result from both the early time E{sub 1} (steep-front pulse) component and the late time E{sub 3} (geomagnetic perturbations) component of HEMP. In this report a HEMP event is viewed in terms of its marginal impact over classical power system disturbances by considering the unique properties and consequences of HEMP. This report focuses on system-wide electrical component failures and their potential consequences from HEMP. In particular, the effectiveness of planning and operating procedures for electric systems is evaluated while under the influence of HEMP. This assessment relies on published data and characterizes utilities using the North American Electric Reliability Council`s regions and guidelines to model electric power system planning and operations. Key issues addressed by the report include how electric power systems are affected by HEMP and what actions electric utilities can initiate to reduce the consequences of HEMP. The report also reviews the salient features of earlier HEMP studies and projects, examines technology trends in the electric power industry which are affected by HEMP, characterizes the vulnerability of power systems to HEMP, and explores the capability of electric systems to recover from a HEMP event.

Reddoch, T.W.; Markel, L.C. [Electrotek Concepts, Inc., Knoxville, TN (United States)

1991-12-31T23:59:59.000Z

183

Activated carbon system cuts foaming and amine losses  

SciTech Connect (OSTI)

Alkanolamines have been successfully used to treat sour gas for removal of H/sub 2/S and CO/sub 2/ for over 30 years. More recently, alkanolamines have also been used to purify flue gas, liquid hydrocarbon streams and process gas streams. Acid gas must be scrubbed because of the lack of heating value of CO/sub 2/, the toxicity of H/sub 2/S and the corrosiveness of CO/sub 2/ and H/sub 2/S in wet gas. During the scrubbing process, other compounds which form degradation products are absorbed by the amine; these degradation products cause fouling of the amine, corrosion and foaming. Southwestern Refining Co., Inc., in Corpus Christi, Texas, installed a diethanolamine (DEA) treatment system to purify sour gas and liquid hydrocarbon streams in 1975. The amine unit was not used until May, 1982, however, because the sulfur content of the gas stream was low until then.

Keaton, M.M.; Bourke, M.J.

1983-08-01T23:59:59.000Z

184

Cost-Effective Design of a Hybrid Electrical Energy Storage System for Electric Vehicles  

E-Print Network [OSTI]

of the battery cycle efficiency and state of health, characteristics of the supercapacitor bank, and dynamics energy storage system comprised of Li-ion batteries only. 1. INTRODUCTION Electric vehicles (EVs) have highly dependent on the intrinsic characteristics of Li-ion batteries. The cycle efficiency degradation

Pedram, Massoud

185

Upgrading Data Centers' Electrical Systems: Selecting the Best Electrical Design Configuration for Existing Data Centers  

E-Print Network [OSTI]

24/7 and as a result, most are required to be operational all the time. In order for these servers to be continuously operational, data centers’ electrical systems need to be very reliable. However, because most existing data centers are decades old...

Lienou, Richard T.

2012-05-11T23:59:59.000Z

186

Electric utility applications of hydrogen energy storage systems  

SciTech Connect (OSTI)

This report examines the capital cost associated with various energy storage systems that have been installed for electric utility application. The storage systems considered in this study are Battery Energy Storage (BES), Superconducting Magnetic Energy Storage (SMES) and Flywheel Energy Storage (FES). The report also projects the cost reductions that may be anticipated as these technologies come down the learning curve. This data will serve as a base-line for comparing the cost-effectiveness of hydrogen energy storage (HES) systems in the electric utility sector. Since pumped hydro or compressed air energy storage (CAES) is not particularly suitable for distributed storage, they are not considered in this report. There are no comparable HES systems in existence in the electric utility sector. However, there are numerous studies that have assessed the current and projected cost of hydrogen energy storage system. This report uses such data to compare the cost of HES systems with that of other storage systems in order to draw some conclusions as to the applications and the cost-effectiveness of hydrogen as a electricity storage alternative.

Swaminathan, S.; Sen, R.K.

1997-10-15T23:59:59.000Z

187

PROTECTIVE SYSTEMS FOR RURAL ELECTRICAL DISTRIBUTION  

Science Journals Connector (OSTI)

... a system entirely protected by Petersen coils, and (6) the interruption in supply to substations connected to healthy lines between switching points must of necessity sometimes be experienced, it ... event of the fault being on the last section in the series, or in a substation structure, that the full sequence of operation takes place. ...

1943-07-03T23:59:59.000Z

188

A comprehensive power loss, efficiency, reliability and cost calculation of a 1 MW/500 kWh battery based energy storage system for frequency regulation application  

Science Journals Connector (OSTI)

Abstract Battery based energy storage system (ESS) has tremendous diversity of application with an intense focus on frequency regulation market. An ESS typically comprised of a battery and a power conversion system. A calculation of performance parameters is performed in this research. The aim is to formulate an in-depth analysis of the ESS in terms of power losses of the semiconductor and electrical devices, efficiency, reliability and cost which would foster various research groups and industries around the globe to improve their future product. In view of this, a relation between the operating conditions and power losses is established to evaluate the efficiency of the system. The power loss calculation presented in this paper has taken into account the conduction and switching losses of the semiconductor devices. Afterwards, the Arrhenius Life Stress relation is adopted to calculate the reliability of the system by considering temperature as a covariate. And finally, a cost calculation is executed and presented as a percentage of total cost of the ESS. It has been found that the power loss and efficiency of the ESS at rated power is 146 kW and 85% respectively. Furthermore, the mean time between failures of the ESS is 8 years and reliability remains at 73% after a year. The major cost impact observed is for battery and PCS as 58% and 16% respectively. Finally, it has been determined that further research is necessary for higher efficient and lower cost system for high penetration of energy storage system in the market.

Md Arifujjaman

2015-01-01T23:59:59.000Z

189

Waukesha Electric Systems Smart Grid Demonstration Project | Open Energy  

Open Energy Info (EERE)

Electric Systems Smart Grid Demonstration Project Electric Systems Smart Grid Demonstration Project Jump to: navigation, search Project Lead Waukesha Electric Systems Country United States Headquarters Location Waukesha, Wisconsin Recovery Act Funding $10,744,409.00 Total Project Value $21,548,821.00 Coordinates 43.0116784°, -88.2314813° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

190

McMinnville Electric System | Open Energy Information  

Open Energy Info (EERE)

McMinnville Electric System McMinnville Electric System Jump to: navigation, search Name McMinnville Electric System Place Tennessee Utility Id 12186 Utility Location Yes Ownership M NERC Location SERC NERC SERC Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Commercial < 50 kW Commercial Commercial 1000-5000 kW Commercial Commercial 50-1000 kW Commercial Commercial 5000-15000 kW Commercial Manufacturing Metered kW 1001-5000 kW Industrial Manufacturing Metered kW 5001-15000 kW Industrial Outdoor Lighting 1000w M.H. Lighting Outdoor Lighting 100w H.P.S. Lighting

191

EMDEX (Electric and Magnetic Field Digital EXposure) system manuals  

SciTech Connect (OSTI)

The EPRI Electric and Magnetic Field Digital EXposure (EMDEX) system consists of hardware and software for characterizing electric and magnetic field exposures. The EMDEX meter is a computer-based portable unit that samples, at a user-programmable rate, the three vector components of magnetic flux density, a measure of the average electric field acting on the torso of the wearer (if an optional sensor is worn) and a measure of rotational motion of the meter in the earth's magnetic field. Modules of the DATACALC software package are used to program the EMDEX, retrieve data at the end of a measurement session, analyze EMDEX data, and prepare tabular and graphical data summaries. The User Manual is designed to provide instruction on the use of the exposure system hardware and software. The Technical Reference Manual provides additional, detailed descriptions of the hardware, software and methodologies used in the EMDEX system.

Not Available

1989-10-01T23:59:59.000Z

192

Electric vehicle regenerative antiskid braking and traction control system  

DOE Patents [OSTI]

An antiskid braking and traction control system for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes one or more sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensors and determining if regenerative antiskid braking control, requiring hydrualic braking control, or requiring traction control are required. The processor then employs a control strategy based on the determined vehicle state and provides command signals to a motor controller to control the operation of the electric traction motor and to a brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative antiskid braking control, hydraulic braking control, and traction control.

Cikanek, Susan R. (Wixom, MI)

1995-01-01T23:59:59.000Z

193

GROWDERS Demonstration of Grid Connected Electricity Systems (Smart Grid  

Open Energy Info (EERE)

GROWDERS Demonstration of Grid Connected Electricity Systems (Smart Grid GROWDERS Demonstration of Grid Connected Electricity Systems (Smart Grid Project) Jump to: navigation, search Project Name GROWDERS Demonstration of Grid Connected Electricity Systems Country France Coordinates 46.134171°, 1.933594° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":46.134171,"lon":1.933594,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

194

Concept for Management of the Future Electricity System (Smart Grid  

Open Energy Info (EERE)

Concept for Management of the Future Electricity System (Smart Grid Concept for Management of the Future Electricity System (Smart Grid Project) Jump to: navigation, search Project Name Concept for Management of the Future Electricity System Country Denmark Coordinates 56.26392°, 9.501785° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":56.26392,"lon":9.501785,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

195

A study of pressure losses in residential air distribution systems  

SciTech Connect (OSTI)

An experimental study was conducted to evaluate the pressure drop characteristics of residential duct system components that are either not available or not thoroughly (sometimes incorrectly) described in existing duct design literature. The tests were designed to imitate cases normally found in typical residential and light commercial installations. The study included three different sizes of flexible ducts, under different compression configurations, splitter boxes, supply boots, and a fresh air intake hood. The experimental tests conformed to ASHRAE Standard 120P--''Methods of Testing to Determine Flow Resistance of HVAC Air Ducts and Fittings''. The flexible duct study covered compressibility and bending effects on the total pressure drop, and the results showed that the available published references tend to underestimate the effects of compression in flexible ducts that can increase pressure drops by up to a factor of nine. The supply boots were tested under different configurations including a setup where a flexible duct elbow connection was considered as an integral part of the supply boot. The supply boots results showed that diffusers can increase the pressure drop by up to a factor of two in exit fittings, and the installation configuration can increase the pressure drop by up to a factor of five. The results showed that it is crucial for designers and contractors to be aware of the compressibility effects of the flexible duct, and the installation of supply boots and diffusers.

Abushakra, Bass; Walker, Iain S.; Sherman, Max H.

2002-07-01T23:59:59.000Z

196

NREL: Vehicle Systems Analysis - Plug-In Hybrid Electric Vehicles  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Plug-In Hybrid Electric Vehicles Plug-In Hybrid Electric Vehicles NREL's vehicle systems analysts work to advance the technology of plug-in hybrid electric vehicles (PHEVs), also known as grid-connected or grid-charged hybrids. Technology Targets and Metrics Analysis We use our Technical Targets Tool to determine pathways for maximizing the potential national impact of plug-in hybrid electric vehicles. This assessment includes consideration of how consumers will value the new vehicle technology based on attributes such as: Acceleration Fuel economy and consumption Cargo capacity Cost. We use the resulting competitiveness index to predict the vehicle's market penetration rate. Then, we can create a total national benefits picture after adding in other factors such as: Existing fleet turnover

197

Systems, methods and computer readable media for estimating capacity loss in rechargeable electrochemical cells  

DOE Patents [OSTI]

A system includes an electrochemical cell, monitoring hardware, and a computing system. The monitoring hardware periodically samples charge characteristics of the electrochemical cell. The computing system periodically determines cell information from the charge characteristics of the electrochemical cell. The computing system also periodically adds a first degradation characteristic from the cell information to a first sigmoid expression, periodically adds a second degradation characteristic from the cell information to a second sigmoid expression and combines the first sigmoid expression and the second sigmoid expression to develop or augment a multiple sigmoid model (MSM) of the electrochemical cell. The MSM may be used to estimate a capacity loss of the electrochemical cell at a desired point in time and analyze other characteristics of the electrochemical cell. The first and second degradation characteristics may be loss of active host sites and loss of free lithium for Li-ion cells.

Gering, Kevin L.

2013-06-18T23:59:59.000Z

198

El Paso Electric Company - Small and Medium System Renewable Energy  

Broader source: Energy.gov (indexed) [DOE]

El Paso Electric Company - Small and Medium System Renewable Energy El Paso Electric Company - Small and Medium System Renewable Energy Certificate Purchase Program El Paso Electric Company - Small and Medium System Renewable Energy Certificate Purchase Program < Back Eligibility Commercial Fed. Government Industrial Nonprofit Residential State Government Savings Category Energy Sources Buying & Making Electricity Solar Wind Program Info Start Date 3/1/2009 State New Mexico Program Type Performance-Based Incentive Rebate Amount Systems 10 kW or less: PV: $0.04/kWh for RECs produced for a period of 8 years Wind: $0.03 /kWh for RECs produced for a period of 8 years Systems greater than 10 kW and up to 100 kW: PV: $0.04/kWh for RECs produced for a period of 8 years Wind: $0.02 /kWh for RECs produced for a period of 8 years Systems greater than 100 kW and up to 1,000 kW:

199

Embedded Real-Time Systems Electrical Model Quad Rotor UAV  

E-Print Network [OSTI]

Sys (2013-2014) #12;10 System SW view joystick QR PC link PC lift roll pitch yaw sensorsES joystickIn4073 Embedded Real-Time Systems Electrical Model Quad Rotor UAV #12;2 TE0300 FPGA System HW view), pitch rate (M), and yaw rate (N) (see qrsim for example!) x z y engine 4 engine 3 engine 2 engine 1 In

Langendoen, Koen

200

Cold Vacuum Drying (CVD) Electrical System Design Description  

SciTech Connect (OSTI)

This system design description (SDD) provides a technical explanation of the design and operation of the electrical system for the Cold Vacuum Drying Facility (CVDF). This SDD also identifies the requirements, and the basis for the requirements and details on how the requirements have been implemented in the design and construction of the facility. This SDD also provides general guidance for the surveillance, testing, and maintenance of this system.

SINGH, G.

2000-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Electric machine and current source inverter drive system  

SciTech Connect (OSTI)

A drive system includes an electric machine and a current source inverter (CSI). This integration of an electric machine and an inverter uses the machine's field excitation coil for not only flux generation in the machine but also for the CSI inductor. This integration of the two technologies, namely the U machine motor and the CSI, opens a new chapter for the component function integration instead of the traditional integration by simply placing separate machine and inverter components in the same housing. Elimination of the CSI inductor adds to the CSI volumetric reduction of the capacitors and the elimination of PMs for the motor further improve the drive system cost, weight, and volume.

Hsu, John S

2014-06-24T23:59:59.000Z

202

Power System Modeling of 20percent Wind-Generated Electricity by 2030  

E-Print Network [OSTI]

power system modeling, wind energy I. I NTRODUCTION Generating electricity from wind technology has several advantages

Hand, Maureen

2008-01-01T23:59:59.000Z

203

Designing a residential hybrid electrical energy storage system based on the energy buffering strategy  

Science Journals Connector (OSTI)

Due to severe variation in load demand over time, utility companies generally raise electrical energy price during periods of high load demand. A grid-connected hybrid electrical energy storage (HEES) system can help residential users lower their electric ... Keywords: electric bill savings, energy management, hybrid electrical energy storage system

Di Zhu; Siyu Yue; Yanzhi Wang; Younghyun Kim; Naehyuck Chang; Massoud Pedram

2013-09-01T23:59:59.000Z

204

Industrial Electric Motor Systems Market Opportunities Assessment  

E-Print Network [OSTI]

(DOE) Office of Energy Efficiency and Renewable Energy (EERE) in December 1998. As of fiscal year 2000, DOE’s Motor Challenge Program was integrated into BestPractices, a broad initiative within EERE. EERE’s BestPractices introduces industrial end users to emerging technologies and cost-saving opportunities in widely used industrial systems. Best-Practices offers resources, tools, and information. Thus, industrial end users can match new and verified energy-efficient technologies and practices to their individual plant needs. Since the original printing, there have been some minor changes. The inside and outside back cover (last two pages) were deleted because they contained outdated program information. In addition, some minor corrections were made to the appendices. To obtain another CD of this document you can: • Contact EERE’s Office of Industrial Technologies ’ (OIT) Clearinghouse:

United S

2002-01-01T23:59:59.000Z

205

Electricity Bill Savings from Residential Photovoltaic Systems: Sensitivities to Changes in Future Electricity Market Conditions  

E-Print Network [OSTI]

entail higher electricity costs than in the reference case,which yields lower electricity purchase costs for utilitiesand renewable electricity generation costs. This proportion

Darghouth, Naim

2014-01-01T23:59:59.000Z

206

Electricity Bill Savings from Residential Photovoltaic Systems: Sensitivities to Changes in Future Electricity Market Conditions  

E-Print Network [OSTI]

USA. CEC, 2012. Electricity Consumption by Planning http://beyond their electricity consumption within each hour. Overwith significant electricity consumption. The variation in

Darghouth, Naim

2014-01-01T23:59:59.000Z

207

Summary Results of Electricity Distribution System Challenges and Opportunities  

Broader source: Energy.gov (indexed) [DOE]

6, 2012 6, 2012 Summary Results of Electricity Distribution System Challenges & Opportunities From Breakout Group Sessions Red Team Results Top Challenges * Communication * System Awareness & Modeling * Standards and Interoperability * Need a national scale Grid Operating System (Grid OS) including microgrids - a uniform framework towards operating all of the nation's distribution grids using a collaborative approach - DOE needs to develop an advanced SCADA system definition given to system operators * Bring information together from various sources - differing protocols, lack of a data service bus, automated processes * Lack of a standard communication protocols, data formats/interfaces

208

Department of Energy`s Wire Development Workshop - Superconductivity program for electric systems  

SciTech Connect (OSTI)

The 1996 High-Temperature Superconducting Wire Development Workshop was held on January 31--February 1 at the Crown Plaza Tampa Westshore in Tampa, Florida. The meeting was hosted by Tampa Electric Company and sponsored by the Department of Energy`s Superconductivity Program for Electric Systems. The meeting focused on recent high-temperature superconducting wire development activities in the Department of Energy`s Superconductivity Systems program. Tampa Electric`s Greg Ramon began the meeting by giving a perspective on the changes now occurring in the utility sector. Major program wire development accomplishments during the past year were then highlighted, particularly the world record achievements at Los Alamos and Oak Ridge National Laboratories. The meeting then focussed on three priority technical issues: thallium conductors; AC losses in HTS conductors; and coated conductors on textured substrates. Following in-depth presentations, working groups were formed in each technology area to discuss and critique the most important current research and development issues. The working groups identified research areas that have the potential for greatly enhancing the wire development effort. These areas are discussed in the summary reports from each of the working groups. This document is a compilation of the workshop proceedings including all general session presentations and summary reports from the working groups.

NONE

1996-06-01T23:59:59.000Z

209

High energy-resolution electron energy-loss spectroscopy study of the electric structure of double-walled carbon nanotubes  

Science Journals Connector (OSTI)

......spectroscopy study of the electric structure of double-walled...to investigate electric structures of...produced by an arc-discharge method [15...carbon nanotubes in arc discharge. J. Phys. Chem...spectroscopy study of the electric structure of double-walled......

Yohei Sato; Masami Terauchi; Yahachi Saito; Riichiro Saito

2006-06-01T23:59:59.000Z

210

Snubber circuit designed for electric car drive system  

Science Journals Connector (OSTI)

This article presents a method to develop the speed-controller dc-motor chopper drive system by using mosfet as the switching drive for motor speed control. The switching current during ton state, and toff state of the mosfet can cause power ... Keywords: chopper, electric drive, mosfet, parallel connected, power dissipation, snubber circuit

Sakrawee Raweekul

2012-01-01T23:59:59.000Z

211

Rice University Electrical and Computer Engineering Digital Systems Processing (DSP)  

E-Print Network [OSTI]

collections of sensor data (BIG DATA) Fortunately, over the last decades, there has been an enormous increaseRice University Electrical and Computer Engineering Digital Systems Processing (DSP) Learn more to accommodate: � Larger and higher-dimensional data sets, including high-resolution images and video, volumetric

212

Century Electric Distribution System Operations Lorenzo Kristov,1  

E-Print Network [OSTI]

May 2014 1 21st Century Electric Distribution System Operations Lorenzo Kristov,1 California adoption of distribution energy technologies. All of this has occurred during a period of increasing of Renewable and Distributed Energy Resources, Caltech Resnick Institute, 2012 #12;May 2014 2 and wholesale

Low, Steven H.

213

ELECTRICAL ANALOGY MODELLING OF PEFC SYSTEM FED BY A COMPRESSOR  

E-Print Network [OSTI]

1 PB13-078 ELECTRICAL ANALOGY MODELLING OF PEFC SYSTEM FED BY A COMPRESSOR Moussa Chnani1 , Hattab is expected to have a low cost, a low weight and a low size, to compete with more and more efficient is representative of an embedded generator, i.e. few sensors, few actuators. Gaseous hydrogen is stored in a tank

Paris-Sud XI, Université de

214

Interdependence of the Electricity Generation System and the Natural Gas System and Implications for Energy Security  

E-Print Network [OSTI]

Approved for public release; distribution is unlimited. Lexington Massachusetts This page intentionally left blank. EXECUTIVE SUMMARY Concern about energy security on domestic Department of Defense installations has led to the possibility of using natural gas-fired electricity generators to provide power in the event of electric grid failures. As natural gas is an increasingly base-load fuel for electricity generation in the United States, the electricity generation system has become increasingly dependent on the operation of the natural gas system. However, as the natural gas system is also partly dependent on electricity for its ability to deliver natural gas from the well-head to the consumer, the question arises of whether, in the event of an electric grid failure, the natural gas would continue to flow. As the natural gas transmission system largely uses natural gas from the pipelines as a source of power, once the gas has been extracted from the ground, the system is less dependent on the electric grid. However, some of the drilling rigs, processing units, and pipeline compressors do depend on electric power, making the vulnerability to the system to a disruption in the national electricity supply network vary depending on the cause, breadth, and geographic location of the disruption. This is due to the large numbers of players in the natural gas production and

N. Judson; N. Judson

2013-01-01T23:59:59.000Z

215

Fractional-slot PM motors for electric power steering systems  

Science Journals Connector (OSTI)

This paper deals with some considerations about a PM motor with fractional number of slot per pole per phase, adopted for an electric power steering system. The key requirements of such a system, such as efficiency, torque ripple, fault tolerance, weight and cost, are considered and discussed. The possibility to design the motor in different forms is investigated, introducing some criteria to evaluate the convenience of using non-overlapping winding.

N. Bianchi; S. Bolognani

2004-01-01T23:59:59.000Z

216

Implementations of electric vehicle system based on solar energy in Singapore : assessment of solar photovoltaic systems  

E-Print Network [OSTI]

To evaluate the feasibility of solar energy based Electric Vehicle Transportation System in Singapore, the state of the art Photovoltaic Systems have been reviewed in this report with a focus on solar cell technologies. ...

Sun, Li

2009-01-01T23:59:59.000Z

217

Quantifying the system balancing cost when wind energy is incorporated into electricity generation system   

E-Print Network [OSTI]

Incorporation of wind energy into the electricity generation system requires a detailed analysis of wind speed in order to minimize system balancing cost and avoid a significant mismatch between supply and demand. Power ...

Issaeva, Natalia

2009-01-01T23:59:59.000Z

218

Reference Model for Control and Automation Systems in Electrical Power  

Broader source: Energy.gov (indexed) [DOE]

Reference Model Reference Model for Control and Automation Systems in Electrical Power Version 1.2 October 12, 2005 Prepared by: Sandia National Laboratories' Center for SCADA Security Jason Stamp, Technical Lead Michael Berg, Co-Technical Lead Michael Baca, Project Lead This work was conducted for the DOE Office of Electricity Delivery and Energy Reliability under Contract M64SCADSNL Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. 2 Contents 1 Executive Summary.................................................................................................3 2 Introduction..............................................................................................................4

219

The electricity consumption impacts of commercial energy management systems  

SciTech Connect (OSTI)

An investigation of energy management systems (EMS) in large commercial and institutional buildings in North Carolina was undertaken to determine how EMS currently affect electricity consumption and what their potential is for being used to reduce on-peak electricity demand. A survey was mailed to 5000 commercial customers; the 430 responses were tabulated and analyzed; EMS vendors were interviewed, and 30 sites were investigated in detail. The detailed assessments included a site interview and reconstruction of historic billing data to evaluate EMS impact, if any. The results indicate that well-tuned EMS can result in a 10 to 40 percent reduction in billed demand, and smaller reductions in energy.

Buchanan, S.; Taylor, R.; Paulos, S.; Warren, W.; Hay, J.

1989-02-01T23:59:59.000Z

220

Research for electric energy systems -- an annual report  

SciTech Connect (OSTI)

This report documents the technical progress in the two investigations which make up the project {open_quotes}Support of Research Projects for Electrical Energy Systems,{close_quotes} Department of Energy Task Order Number 137, funded by the US Department of Energy and performed by the Electricity Division of the National Institute of Standards and Technology (NIST). The first investigation is concerned with the measurement of magnetic fields in support of epidemiogical and in vitro studies of biological field effects. During 1992, the derivation of equations which predict differences between the average magnetic flux density using circular coil probes and the flux density at the center of the probe, assuming a dipole magnetic field, were completed. The information gained using these equations allows the determination of measurement uncertainty due to probe size when magnetic fields from many electrical appliances are characterized. Consultations with various state and federal organizations and the development of standards related to electric and magnetic field measurements continued. The second investigation is concerned with two different activities related to compressed-gas insulated high voltage systems: (1) the measurement of dissociative electron attachment cross sections and negative ion production in S{sub 2}F{sub 10}, S{sub 2}OF{sub 10}, and S{sub 2}O{sub 2}F{sub 10}, and (2) Monte-Carlo simulations of ac-generated partial-discharge pulses that can occur in SF{sub 6}-insulated power systems and can be sources of gas decomposition.

Anderson, W.E. [ed.

1993-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

System for detecting and limiting electrical ground faults within electrical devices  

DOE Patents [OSTI]

An electrical ground fault detection and limitation system for employment with a nuclear reactor utilizing a liquid metal coolant. Elongate electromagnetic pumps submerged within the liquid metal coolant and electrical support equipment experiencing an insulation breakdown occasion the development of electrical ground fault current. Without some form of detection and control, these currents may build to damaging power levels to expose the pump drive components to liquid metal coolant such as sodium with resultant undesirable secondary effects. Such electrical ground fault currents are detected and controlled through the employment of an isolated power input to the pumps and with the use of a ground fault control conductor providing a direct return path from the affected components to the power source. By incorporating a resistance arrangement with the ground fault control conductor, the amount of fault current permitted to flow may be regulated to the extent that the reactor may remain in operation until maintenance may be performed, notwithstanding the existence of the fault. Monitors such as synchronous demodulators may be employed to identify and evaluate fault currents for each phase of a polyphase power, and control input to the submerged pump and associated support equipment.

Gaubatz, Donald C. (Cupertino, CA)

1990-01-01T23:59:59.000Z

222

The Design of Partial Electric and Control System for 500kV Substation  

Science Journals Connector (OSTI)

The good design of the electric section in substation and its stable move may effect the electrical system of substation directly, this paper aim at the design of an electric primary section in substation and its...

Haimei Xiao; Lichun Shi

2012-01-01T23:59:59.000Z

223

6.061 / 6.690 Introduction to Electric Power Systems, Spring 2007  

E-Print Network [OSTI]

This course is an introductory subject in the field of electric power systems and electrical to mechanical energy conversion. Electric power has become increasingly important as a way of transmitting and transforming energy ...

Kirtley, James

224

Effect of ion orbit loss on the structure in the H-mode tokamak edge pedestal profiles of rotation velocity, radial electric field, density, and temperature  

SciTech Connect (OSTI)

An investigation of the effect of ion orbit loss of thermal ions and the compensating return ion current directly on the radial ion flux flowing in the plasma, and thereby indirectly on the toroidal and poloidal rotation velocity profiles, the radial electric field, density, and temperature profiles, and the interpretation of diffusive and non-diffusive transport coefficients in the plasma edge, is described. Illustrative calculations for a high-confinement H-mode DIII-D [J. Luxon, Nucl. Fusion 42, 614 (2002)] plasma are presented and compared with experimental results. Taking into account, ion orbit loss of thermal ions and the compensating return ion current is found to have a significant effect on the structure of the radial profiles of these quantities in the edge plasma, indicating the necessity of taking ion orbit loss effects into account in interpreting or predicting these quantities.

Stacey, Weston M. [Fusion Research Center, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States)] [Fusion Research Center, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States)

2013-09-15T23:59:59.000Z

225

Transient stability enhancement of electric power generating systems by 120-degree phase rotation  

DOE Patents [OSTI]

A method and system for enhancing the transient stability of an intertied three-phase electric power generating system. A set of power exporting generators (10) is connected to a set of power importing generators (20). When a transient cannot be controlled by conventional stability controls, and imminent loss of synchronism is detected (such as when the equivalent rotor angle difference between the two generator sets exceeds a predetermined value, such as 150 degrees), the intertie is disconnected by circuit breakers. Then a switch (30) having a 120-degree phase rotation, or a circuit breaker having a 120-degree phase rotation is placed in the intertie. The intertie is then reconnected. This results in a 120-degree reduction in the equivalent rotor angle difference between the two generator sets, making the system more stable and allowing more time for the conventional controls to stabilize the transient.

Cresap, Richard L. (Portland, OR); Taylor, Carson W. (Portland, OR); Kreipe, Michael J. (Portland, OR)

1982-01-01T23:59:59.000Z

226

Integrated Design Platform for Marine Electric Propulsion System  

Science Journals Connector (OSTI)

As the modern vessels have become more complex comprising an increasing number of heterogeneous interdependent subsystems. This increased complexity requires new methods for the design and operation of these marine systems. An integrated design platform for marine electric propulsion system which aims to characteristic analysis of plants and systems, DCS control algorithm trim, intelligent control strategy develop of automation and operation is presented in this paper. The design process and thoughts is described in details, and the current work is introduced. The main focus of this paper is in the development of marine integrated design platform which seeks to shift ship design to a distribution, intelligent control architecture through increased automation.

Chen Yutao; Zeng Fanming; Wu Jiaming

2012-01-01T23:59:59.000Z

227

Comments by the American Electric Power System on Proposed Coordination of  

Broader source: Energy.gov (indexed) [DOE]

by the American Electric Power System on Proposed by the American Electric Power System on Proposed Coordination of Federal Authorizations for Electric Transmission Facilities Comments by the American Electric Power System on Proposed Coordination of Federal Authorizations for Electric Transmission Facilities Proposed Coordination of Federal Authorizations for Electric Transmission Facilities - Interim Final Rule and Proposed Rule (DOE, 10 CR Part 900): The utility operating companies of the American Electric Power System ("AEP") commend the Department of Energy ("DOE") for its ongoing commitment to implement the provisions of the Energy Policy Act of 2005 ("EPAct"), specifically, as addressed here, the DOE's continuing effort to establish procedures under which entities may request that DOE

228

MEMORY LOSS FOR TIME-DEPENDENT DYNAMICAL SYSTEMS WILLIAM OTT, MIKKO STENLUND, AND LAI-SANG YOUNG  

E-Print Network [OSTI]

MEMORY LOSS FOR TIME-DEPENDENT DYNAMICAL SYSTEMS WILLIAM OTT, MIKKO STENLUND, AND LAI-SANG YOUNG- namical systems. Exponential loss of memory is proved for expanding maps and for one-dimensional piece memory of the past as it evolves with time. Memory is lost when the initial state of a system is quickly

229

Financial system loss as an example of high consequence, high frequency events  

SciTech Connect (OSTI)

Much work has been devoted to high consequence events with low frequency of occurrence. Characteristic of these events are bridge failure (such as that of the Tacoma Narrows), building failure (such as the collapse of a walkway at a Kansas City hotel), or compromise of a major chemical containment system (such as at Bhopal, India). Such events, although rare, have an extreme personal, societal, and financial impact. An interesting variation is demonstrated by financial losses due to fraud and abuse in the money management system. The impact can be huge, entailing very high aggregate costs, but these are a result of the contribution of many small attacks and not the result of a single (or few) massive events. Public awareness is raised through publicized events such as the junk bond fraud perpetrated by Milikin or gross mismanagement in the failure of the Barings Bank through unsupervised trading activities by Leeson in Singapore. These event,s although seemingly large (financial losses may be on the order of several billion dollars), are but small contributors to the estimated $114 billion loss to all types of financial fraud in 1993. This paper explores the magnitude of financial system losses and identifies new areas for analysis of high consequence events including the potential effect of malevolent intent.

McGovern, D.E.

1996-07-01T23:59:59.000Z

230

Minimum Cost Operation Mode and Minimum Loss Operation Mode of Power System – Operation Mode Selection Based on Voltage Stability  

Science Journals Connector (OSTI)

Two formulae – an optimal P-Q generation formula for minimum system cost and an optimal MW allocation formula for minimum system loss – are described in this paper. The author defines two kinds of power system operation

Sang-Joong Lee

2006-01-01T23:59:59.000Z

231

CDCA Final EIS for Ivanpah Solar Electric Generating System  

Broader source: Energy.gov (indexed) [DOE]

CALIFORNIA DESERT CONSERVATION AREA PLAN CALIFORNIA DESERT CONSERVATION AREA PLAN AMENDMENT / FINAL ENVIRONMENTAL IMPACT STATEMENT FOR IVANPAH SOLAR ELECTRIC GENERATING SYSTEM FEIS-10-31 JULY 2010 BLM/CA/ES-2010-010+1793 In Reply Refer To: In reply refer to: 1610-5.G.1.4 2800lCACA-48668 Dear Reader: Enclosed is the proposed California Desert Conservation Area Plan Amendment and Final Environmental Impact Statement (CDCA Plan Amendment/FEIS) for the Ivanpah Solar Electric Generating System (ISEGS) project. The Bureau of Land Management (BLM) prepared the CDCA Plan Amendment/FEIS for the ISEGS project in consultation with cooperating agencies and California State agencies, taking into account public comments received during the National Environmental Policy Act (NEPA) process. The proposed plan amendment adds the Ivanpah

232

FAQS JOB TASK ANALYSIS - Electrical Systems and Safety Oversight  

Broader source: Energy.gov (indexed) [DOE]

Electrical Systems and Safety Oversight Electrical Systems and Safety Oversight Step 1 Identify and evaluate tasks - Develop a comprehensive list of tasks that define the job. o A great starting point is the list of Duties and Responsibilities from the FAQS. o Give careful thought to additional tasks that could be considered. o Don't worry about deleting tasks at this point - that is a part of the process further down. - List the tasks (and their sources, e.g., Duties and Responsibilities #1) in the chart below. - Discuss each task as a group and come to a consensus pertaining to Importance and Frequency of the task (i.e., each team member can consent to the assigned value, even if they don't exactly agree with it). - When all values have been assigned, consider as a group deleting tasks that receive

233

Distributed monitoring system for electric-motor-driven compressors  

SciTech Connect (OSTI)

Personnel in the Instrumentation and Controls Division at the Oak Ridge National Laboratory, in association with the United States Enrichment corporation (USEC), the Navy, and various Department of Energy sponsors, have been involved in the development and application of motor-current signature analysis (CSA) for several years. In that time CSA has proven to not only be useful for manually applied periodic monitoring of electrically driven equipment but it has also been demonstrated to be well suited for dedicated monitoring systems in industrial settings. Recent work has resulted in the development and installation of a system that can monitor up to 640 motor and compressor stages for various aerodynamic conditions in the gas compressors and electrical problems in the drive motors. This report describes a demonstration of that technology installed on 80 stages at each of the two USEC uranium enrichment plants.

Castleberry, K.N.

1996-01-01T23:59:59.000Z

234

Superconductivity for electric systems program plan, FY 1996--FY 2000  

SciTech Connect (OSTI)

This describes a comprehensive, integrated approach for the development of HTS (high-temperature superconductivity) technology for cost-effective use in electric power applications. This approach supports the program`s mission: to develop the technology that could lead to industrial commercialization of HTS electric power applications, such as fault-current limiters, motors, generators, transmission cables, superinductors, and superconducting energy storage. The vision is that, by 2010, the US power systems equipment industry will regain a major share of the global market by offering superconducting products that outperform the competition; and in US, the power grid will gain increased efficiency and stability by incorporating many kinds of HTS devices. After an overview and a discussion of the program plan (wires, systems technology, partnership initiative), this document discusses technology status, stakeholders, and the role of US DOE.

NONE

1996-03-01T23:59:59.000Z

235

VOLTTRON: An Agent Execution Platform for the Electric Power System  

SciTech Connect (OSTI)

Volttron is an agent execution platform that is engineered for use in the electric power system. Volttron provides resource guarantees for agents and the platform including memory and processor utilization; authentication and authorization services; directory services for agent and resource location; and agent mobility. Unlike most other agent platforms, Volttron does not depend on a single agent authoring language. Instead, we chose to design and implement Volttron as a platform service and framework that is decoupled from the agent execution environment. A prototype implementation of Volttron has been written in Python (using Python v2.7.2) and we have executed agents written in Python and Java and as shell scripts. The intended use of Volttron is in the power distribution system for managing distributed generation, demand-response, and plug-in electric vehicles.

Akyol, Bora A.; Haack, Jereme N.; Ciraci, Selim; Carpenter, Brandon J.; Vlachopoulou, Maria; Tews, Cody W.

2012-06-05T23:59:59.000Z

236

Published in IET Electrical Systems in Transportation Received on 2nd May 2013  

E-Print Network [OSTI]

of electric vehicles ­ integration of energy and information Ching Chuen Chan1,2, Linni Jian3, Dan Tu2,4 1 charging of electric vehicles. The study begins with the introduction of the engineering philosophy of electric vehicle system. Then the identification of key players in electric vehicles system

Leung, Ka-Cheong

237

Torque-Power-Speed Hybrid Control of Marine Electric Propulsion System  

Science Journals Connector (OSTI)

The conventional electric propulsion system is usually aimed at controlling the shaft speed only, without taking advantages of the electric propulsion motor into control strategies. This paper designs a SSP for marine electric propulsion system with ... Keywords: control, ship, marine electric propulsion, hybrid control

Guichen Zhang; Jie Ma

2010-05-01T23:59:59.000Z

238

Insertion loss class—Enhancing the single number rating system for duct silencers  

Science Journals Connector (OSTI)

Single number rating systems have been used successfully to select architectural acoustics products for many years. Recently a single number rating system was proposed to evaluate sound attenuators in HVAC applications. The proposed system does not include the very low frequencies. This paper discusses the addition of the 31 Hz octave band to the proposed standard contour for calculating insertion loss class (ILC). A number of examples are shown using actual published silencer test data how the system can be applied to common HVAC noise problems.

2005-01-01T23:59:59.000Z

239

An assessment of unforeseen losses resulting from inappropriate use of solar home systems in South Africa  

Science Journals Connector (OSTI)

Abstract One of the challenges to the sustainability of the Solar Home System (SHS) electrification program in South Africa is equipment theft. In response to this, communities susceptible to solar panel theft resort to mounting their panels flat on the ground so they can be looked after during the day and taken indoors at night for safe keeping. Other households use their security lights to illuminate their environment and provide security for pole and roof mounted solar panels at night. These actions have consequential effects on the performance of the SHS. Several studies have detected resentment from households regarding the low power quality from these systems. Most scientific contributions on the issue of low power from SHS have focused on the challenges based on the technical designs of the systems. The power losses due to the usage pattern of the system has not received much attention. This study therefore reports on the technical losses as a result of the deviation from the designed and installed specification of the system by the users in order to protect their systems. It also investigates the linkage between the technical and economic losses which affects the sustainability of SHS program. A case study was performed in Thlatlaganya village within Limpopo province in South Africa. Technical analysis using PVSYST solar software revealed that the energy output and performance of the battery is compromised as a result of these practices. Economic analysis indicates that the battery life and the economics of owning and operating SHS are affected negatively. The study recommends solutions to mitigate these losses, and proposes a cost effective way of optimizing the operation of SHS using a Bench-Rack system for mounting solar panels.

Chukwuma Leonard Azimoh; Fredrik Wallin; Patrik Klintenberg; Björn Karlsson

2014-01-01T23:59:59.000Z

240

Electric Fuel Pump Condition Monitor System Using Electricalsignature Analysis  

DOE Patents [OSTI]

A pump diagnostic system and method comprising current sensing probes clamped on electrical motor leads of a pump for sensing only current signals on incoming motor power, a signal processor having a means for buffering and anti-aliasing current signals into a pump motor current signal, and a computer having a means for analyzing, displaying, and reporting motor current signatures from the motor current signal to determine pump health using integrated motor and pump diagnostic parameters.

Haynes, Howard D [Knoxville, TN; Cox, Daryl F [Knoxville, TN; Welch, Donald E [Oak Ridge, TN

2005-09-13T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

System Theoretic Approach for Determining Causal Factors of Quality Loss in Complex System Design  

E-Print Network [OSTI]

. Traditional design methods such as Failure Modes and Effects Analysis (FMEA), Fault Tree Analysis (FTA to identify more causal factors for quality losses than FMEA or FTA, including component interactions

242

Reliability Modeling of Cyber-Physical Electric Power Systems: A System-Theoretic Framework  

E-Print Network [OSTI]

generation sources, e.g., wind, photovoltaics (PV), new loads, such as plug-in hybrid electric vehicles (PHEV]. In this regard, next generation electric power systems envisioned under the US DOE Smart Grid initiative and its the tight coupling between this communication and control infrastructure and the physical components

Liberzon, Daniel

243

AFTER A Framework for electrical power sysTems vulnerability  

Open Energy Info (EERE)

AFTER A Framework for electrical power sysTems vulnerability AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration (Smart Grid Project) (Norway) Jump to: navigation, search Project Name AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration Country Norway Coordinates 60.472023°, 8.468946° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":60.472023,"lon":8.468946,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

244

A comprehensive study of electric propulsion system for vehicular application  

Science Journals Connector (OSTI)

Electrification of vehicular systems partial or complete has emerged as an attractive and sustainable alternative for futuristic transportation systems. This so-called electric vehicular technology (EVT) has engaged auto-manufacturers and researchers to primarily focus on fuel economy driving range performance and costs. These parameters are influenced by the design and performance of electric propulsion system (EPS) for vehicular application and its suitable integration with various electrical and mechanical apparatus. This paper primarily presents a comprehensive study of EPS. To present the study in synthesis a survey of important constituents of EPS is first carried out with techno-economic perspectives. Contemporary configurations of conventional and electrified vehicles are then discussed along with their respective advantages and limitations. EPS is considered to be the heart of EVT and therefore components of a standard EPS are discussed and comparative analyses are carried out in terms of present trends ongoing technological advancements and future challenges. In addition power flow control and management algorithms for EVT are also briefed.

Lalit Kumar

2014-01-01T23:59:59.000Z

245

Co-design of Embedded Controllers for Power Electronics and Electric Systems  

E-Print Network [OSTI]

, Electric process. I. INTRODUCTION Today, variable speed motor control systems have a wide rangeCo-design of Embedded Controllers for Power Electronics and Electric Systems Slim Ben Saoud L for the design of control systems for power electronics and electric drives. We discuss the case of a DC system

California at Irvine, University of

246

EV Everywhere: Electric Drive Systems Bring Power to Plug-in Electric Vehicles  

Broader source: Energy.gov [DOE]

Find out how the Energy Department's Vehicles Technologies Office is helping reduce the cost of plug-in electric vehicles through research and development of electric drive technologies.

247

On Minimizing the Energy Consumption of an Electrical Vehicle  

E-Print Network [OSTI]

The electrical vehicle energy management can be expressed as a Bang-Bang .... reflects the losses due to the internal resistance of the battery. The system ...

2011-04-19T23:59:59.000Z

248

Loss of integrated control system power and overcooling transient at Rancho Seco on December 26, 1985  

SciTech Connect (OSTI)

On December 26, 1985, Rancho Seco Nuclear Generating Station, located in Clay, California, about 25 miles southeast of Sacramento, experienced a loss of dc power within the integrated control system (ICS) while the plant was operating at 76% power. The plant is owned by the Sacramento Municipal Utility District (SMUD). Following the loss of ICS dc power, the reactor tripped on high reactor coolant system (RCS) pressure followed by a rapid overcooling transient and automatic initiation of the safety features actuation system on low RCS pressure. The overcooling transient continued until ICS dc power was restored 26 minutes after its loss. The fundamental causes for this transient were design weaknesses and vulnerabilities in the ICS and in the equipment controlled by that system. These weaknesses and vulnerabilities were not adequately compensated by other design features, plant procedures or operator training. These weaknesses and vulnerabilities were largely known to SMUD and the NRC staff by virtue of a number of precursor events and through related analyses and studies. Yet, adequate plant modifications were not made so that this event would be improbable, or so that its course or consequences would be altered significantly. The information was available and known which could have prevented this overcooling transient; but in the absence of adequate plant modifications, the incident should have been expected. The report includes findings and conclusions of the NRC Incident Investigation Team sent to Rancho Seco by the NRC Executive Director for Operations in conformance with NRC's recently established Incident Investigation Program. 33 figs.

Not Available

1986-02-01T23:59:59.000Z

249

Design criteria document, electrical system, K-Basin essential systems recovery, Project W-405  

SciTech Connect (OSTI)

This Design Criteria Document provides the criteria for design and construction of electrical system modifications for 100K Area that are essential to protect the safe operation and storage of spent nuclear fuel in the K-Basin facilities.

Hoyle, J.R.

1994-12-12T23:59:59.000Z

250

Design and evaluation of seasonal storage hydrogen peak electricity supply system  

E-Print Network [OSTI]

The seasonal storage hydrogen peak electricity supply system (SSHPESS) is a gigawatt-year hydrogen storage system which stores excess electricity produced as hydrogen during off-peak periods and consumes the stored hydrogen ...

Oloyede, Isaiah Olanrewaju

2011-01-01T23:59:59.000Z

251

Low-power electricity generation from dynamical systems  

Science Journals Connector (OSTI)

This talk will review our research on energy harvesting from electroelastic dynamical systems for low-power electricity generation with an emphasis on piezoelectric transduction. The transformation of vibrations into electricity using piezoelectric materials with the goal of powering small electronic components has received growing attention over the last decade. Enabling energy-autonomous small electronic components can lead to reduced maintenance costs in various wireless applications such as structural health monitoring of civil and military systems. After a brief discussion of energy harvesting methods for low-power electricity generation this talk will be focused on linear and nonlinear energy harvesting using piezoelectric materials through the topics of distributed-parameter electroelastic dynamics of energy harvesters performance and frequency bandwidth enhancement by exploiting nonlinear dynamic phenomena deterministic and stochastic excitation of monostable and bistable configurations effects of dissipative and inherent electroelastic nonlinearities electroaeroelastic flow energy harvesting using airfoil-based and bluff body-based configurations and enhanced harvesting of structure-borne propagating waves using elastoacoustic mirrors and metamaterial structures. A brief introduction to our efforts on multifunctional underwater thrust and power generation using flexible piezoelectric composites will also be given.

Alper Erturk

2013-01-01T23:59:59.000Z

252

Using conservation to reduce energy system uncertainty in the US north-west electric system  

Science Journals Connector (OSTI)

The uncertainty of the US north-west electric system was the subject of a recent study for the Bonneville Power Administration. The study focused on the impact of efficiency standards that would reduce the electricity used in new buildings and appliances. The main question was whether the standards would also reduce the long-term uncertainty in the system. This paper summarises the case study findings which should be of interest to energy planners in Europe as well as in the USA.

Andrew Ford

1990-01-01T23:59:59.000Z

253

Advanced Electric Systems and Aerodynamics for Efficiency Improvements in Heavy Duty Trucks  

SciTech Connect (OSTI)

The Advanced Electric Systems and Aerodynamics for Efficiency Improvements in Heavy Duty Trucks program (DE-FC26-04NT42189), commonly referred to as the AES program, focused on areas that will primarily benefit fuel economy and improve heat rejection while driving over the road. The AES program objectives were to: (1) Analyze, design, build, and test a cooling system that provided a minimum of 10 percent greater heat rejection in the same frontal area with no increase in parasitic fan load. (2) Realize fuel savings with advanced power management and acceleration assist by utilizing an integrated starter/generator (ISG) and energy storage devices. (3) Quantify the effect of aerodynamic drag due to the frontal shape mandated by the area required for the cooling system. The program effort consisted of modeling and designing components for optimum fuel efficiency, completing fabrication of necessary components, integrating these components into the chassis test bed, completing controls programming, and performance testing the system both on a chassis dynamometer and on the road. Emission control measures for heavy-duty engines have resulted in increased engine heat loads, thus introducing added parasitic engine cooling loads. Truck electrification, in the form of thermal management, offers technological solutions to mitigate or even neutralize the effects of this trend. Thermal control offers opportunities to avoid increases in cooling system frontal area and forestall reduced fuel economy brought about by additional aerodynamic vehicle drag. This project explored such thermal concepts by installing a 2007 engine that is compliant with current regulations and bears additional heat rejection associated with meeting these regulations. This newer engine replaced the 2002 engine from a previous project that generated less heat rejection. Advanced power management, utilizing a continuously optimized and controlled power flow between electric components, can offer additional fuel economy benefits to the heavy-duty trucking industry. Control software for power management brings added value to the power distribution and energy storage architecture on board a truck with electric accessories and an ISG. The research team has built upon a previous truck electrification project, formally, 'Parasitic Energy Loss Reduction and Enabling Technologies for Class 7/8 Trucks', DE-FC04-2000AL6701, where the fundamental concept of electrically-driven accessories replacing belt/gear-driven accessories was demonstrated on a Kenworth T2000 truck chassis. The electrical accessories, shown in Figure 1, were controlled to provide 'flow on demand' variable-speed operation and reduced parasitic engine loads for increased fuel economy. These accessories also provided solutions for main engine idle reduction in long haul trucks. The components and systems of the current project have been integrated into the same Kenworth T2000 truck platform. Reducing parasitic engine loading by decoupling accessory loads from the engine and driving them electrically has been a central concept of this project. Belt or gear-driven engine accessories, such as water pump, air conditioning compressor, or air compressor, are necessarily tied to the engine speed dictated by the current vehicle operating conditions. These conventional accessory pumps are sized to provide adequate flow or pressure at low idle or peak torque speeds, resulting in excess flow or pressure at cruising or rated speeds. The excess flow is diverted through a pressure-minimizing device such as a relief valve thereby expending energy to drive unnecessary and inefficient pump operation. This inefficiency causes an increased parasitic load to the engine, which leads to a loss of usable output power and decreased fuel economy. Controlling variable-speed electric motors to provide only the required flow or pressure of a particular accessory system can yield significant increases in fuel economy for a commercial vehicle. Motor loads at relatively high power levels (1-5 kW, or higher) can be efficiently provided

Larry Slone; Jeffrey Birkel

2007-10-31T23:59:59.000Z

254

Discharging a DC bus capacitor of an electrical converter system  

DOE Patents [OSTI]

A system and method of discharging a bus capacitor of a bidirectional matrix converter of a vehicle are presented here. The method begins by electrically shorting the AC interface of the converter after an AC energy source is disconnected from the AC interface. The method continues by arranging a plurality of switching elements of a second energy conversion module into a discharge configuration to establish an electrical current path from a first terminal of an isolation module, through an inductive element, and to a second terminal of the isolation module. The method also modulates a plurality of switching elements of a first energy conversion module, while maintaining the discharge configuration of the second energy conversion module, to at least partially discharge a DC bus capacitor.

Kajouke, Lateef A; Perisic, Milun; Ransom, Ray M

2014-10-14T23:59:59.000Z

255

Neural Network Based Energy Storage System Modeling for Hybrid Electric Vehicles  

SciTech Connect (OSTI)

Demonstrates the application of an artificial neural network (ANN) for modeling the energy storage system of a hybrid electric vehicle.

Bhatikar, S. R.; Mahajan, R. L.; Wipke, K.; Johnson, V.

1999-08-01T23:59:59.000Z

256

Advanced Commercial Buildings Research; Electricity, Resources, & Building Systems Integration (Fact Sheet)  

SciTech Connect (OSTI)

Factsheet describing the Advanced Commercial Buildings Research group within NREL's Electricity, Resources, and Buildings Systems Integration Center.

Not Available

2009-09-01T23:59:59.000Z

257

Energy Storage System Considerations for Grid-Charged Hybrid Electric Vehicles (Presentation)  

SciTech Connect (OSTI)

Provides an overview of a study regarding energy storage system considerations for a plug-in hybrid electric vehicle.

Markel, T.; Simpson, A.

2005-09-01T23:59:59.000Z

258

Review of electrical energy storage system for vehicular applications  

Science Journals Connector (OSTI)

Abstract Recently, automotive original equipment manufacturers have focused their efforts on developing greener propulsion solutions in order to meet the societal demand and ecological need for clean transportation, so the development of new energy vehicle (NEV) has become a consensus among governments and automotive enterprises. Efficient electrical energy storage system (EESS) appears to be very promising for meeting the rapidly increased requirements of vehicular applications. It is necessary to understand performances of electrical energy storage technologies. Therefore, this paper reviews the various electrical energy storage technologies and their latest applications in vehicle, such as battery energy storage (BES), superconducting magnetic energy storage (SMES), flywheel energy storage (FES), ultra-capacitor (UC) energy storage (UCES) and hybrid energy storage (HES). The research priorities and difficulties of each electrical energy storage technology are also presented and compared. Afterwards, the key technologies of EESS design for vehicles are presented. In addition, several conventional \\{EESSs\\} for vehicle applications are also analyzed; the comparison on advantages and disadvantages of various conventional \\{EESSs\\} is highlighted. From the rigorous review, it is observed that almost all current conventional \\{EESSs\\} for vehicles cannot meet a high-efficiency of power flow over the full operation range; optimization of EESS and improved control strategies will become an important research topic. Finally, this paper especially focuses on a type of linear engine, a brand new automotive propulsion system used for NEV; the guiding principle of EESS design for the new type of linear engine is proposed, an overview of a novel hybrid EESS based on hybrid power source and series–parallel switchover of UC with high efficiency under wide power flow range for the type of linear engine is presented, and advanced features of the novel hybrid EESS are highlighted.

Guizhou Ren; Guoqing Ma; Ning Cong

2015-01-01T23:59:59.000Z

259

Numerical assessment of liquid cooling system for power electronics in fuel cell electric vehicles  

Science Journals Connector (OSTI)

Abstract Electrical power from the fuel cells is converted and controlled by power electronics that are composed of control units, converters and switching devices. During the power management, the inevitable power losses induce heat generation in the power electronics. In this, effective design for the cooling system is essential in terms of safety, reliability, and durability. A liquid cooling system for the power electronics is applied to chill the electrical components below the thermal specifications. Nonetheless, the layout of cooling components is usually designed after the completion of the chassis and power electronics in the automotive applications, thus, only a little freedom is allowed to change the layout. Thus, it is significant and urgent to investigate the cooling performance before finalizing the layout design. In this paper, one dimensional and computerized fluid dynamics code is employed to simulate the performance of the cooling system at the early stage of conceptual design. Three different layouts of cooling systems are chosen to compare the ensuing systematic cooling performances. The liquid flow rates, pressure drops, and maximum temperatures are computed by the numerical simulations of the cooling system which comprises the cold plates, liquid pump, radiator, and plumbing network. It is demonstrated that for a fuel cell electric vehicle of 100 kW, the dual cooling loops with a specified array control the maximum temperatures below thermal specification by inducing the higher liquid flow rate of rate of 33.4 L/min through radiator than 20.0 L/min in a single loop. The proposed systematic numerical simulation provides significant information to determine the layout of the power electronics coupled with the cooling performance at the early stage of conceptual design.

Heesung Park

2014-01-01T23:59:59.000Z

260

The agricultural systems and soil loss in the Corredor River Basin, Costa Rica  

E-Print Network [OSTI]

agricultural systems and to analyse the personal, socio- economic, institutional, and physical factors that accelerate soil erosion and influence the use of conservation practices by farmers. Three hypothesis were formulated: (1) Small farms tend... to be less capital-intensive units than large farms. (2) Small farms employ fewer soil conservation practices than large farms. Q3 Small farms have more soil loss than large farms. To test the hypotheses small and large farms were compared to see how...

Castillo, Roberto

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Optimal electricity system planning in a large hydro jurisdiction: Will British Columbia soon become a major importer of electricity?  

E-Print Network [OSTI]

energy sources will be a challenge. At present $65 TW h of electricity are distributed annually in BCOptimal electricity system planning in a large hydro jurisdiction: Will British Columbia soon 2012 Available online 21 December 2012 Keywords: Energy planning Hydroelectricity production Carbon tax

Pedersen, Tom

262

Superconductivity for Electric Systems Program Review LANL Contributions to GE HTS Generator  

E-Print Network [OSTI]

-section · Develop a heat generation profile => thermal analysis #12;Superconductivity for Electric Systems Program of coolant loop to verify heat due to flow work on helium #12;Superconductivity for Electric Systems Program for Electric Systems Program Review Stationary heat pipe tests were necessary to determine performance impact

263

ELEG620: Solar Electric Systems University of Delaware Spring 2008 1 University of Delaware  

E-Print Network [OSTI]

obtained as an approximation to your design load, using 200Ws of solar panels. Existing loads which we haveELEG620: Solar Electric Systems University of Delaware Spring 2008 1 University of Delaware Department of Electrical and Computer Engineering ELEG620: Solar Electric Systems Photovoltaic System Design

Honsberg, Christiana

264

Cyber-Physical Systems for Optimal Energy Management Scheme of Autonomous Electric Vehicle  

Science Journals Connector (OSTI)

......cyber-physical systems; autonomous electric vehicle; energy management...applications [e.g., autonomous electric vehicle (AEV) with wireless...systems, such as aircrafts and automobiles, to large-scale systems...infrastructure that supplies electric energy for the recharging......

Jiafu Wan; Hehua Yan; Di Li; Keliang Zhou; Lu Zeng

2013-08-01T23:59:59.000Z

265

Calculation of transmission system losses for the Taiwan Power Company by the artificial neural network with time decayed weight  

SciTech Connect (OSTI)

For energy conservation and improvement of power system operation efficiency, how to reduce the transmission system losses becomes an important topic of grave concern. To understand the cause, and to evaluate the amount, of the losses are the prior steps to diminish them. To simplify the evaluation procedure without losing too much accuracy, this paper adopts the artificial neural network, which is a model free network, to analyze the transmission system losses. As the artificial neural network with time decayed weight has the capability of learning, memorizing, and forgetting, it is more suitable for a power system with gradually changing characteristics. By using this artificial neural network, the estimation of transmission system losses will be more precise. In this paper, comparison will be made between the results of artificial neural network analysis and polynomial loss equations analysis.

Chu, W.C.; Chen, B.K.; Mo, P.C. [Tatung Inst. of Tech., Taipei (Taiwan, Province of China)

1995-12-31T23:59:59.000Z

266

ELECTRIC  

Office of Legacy Management (LM)

you nay give us will be greatly uppreckted. VPry truly your23, 9. IX. Sin0j3, Mtinager lclectronics and Nuclear Physics Dept. omh , WESTINGHOUSE-THE NAT KING IN ELECTRICITY...

267

Electricity for road transport, flexible power systems and wind power  

Open Energy Info (EERE)

road transport, flexible power systems and wind power road transport, flexible power systems and wind power (Smart Grid Project) Jump to: navigation, search Project Name Electricity for road transport, flexible power systems and wind power Country Denmark Coordinates 56.26392°, 9.501785° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":56.26392,"lon":9.501785,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

268

Electricity storage for short term power system service (Smart Grid  

Open Energy Info (EERE)

storage for short term power system service (Smart Grid storage for short term power system service (Smart Grid Project) Jump to: navigation, search Project Name Electricity storage for short term power system service Country Denmark Coordinates 56.26392°, 9.501785° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":56.26392,"lon":9.501785,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

269

Coupled numerical modelling of power loss generation in busbar system of low-voltage switchgear  

Science Journals Connector (OSTI)

Abstract This paper presents a coupled mathematical model of the heat transfer processes in an electric switchgear. The considered problem required the computation of the detailed distribution of the power losses and all the heat transfer modes (radiation, convection, and conduction) within a unit. In this complex thermal analysis, different definitions of electric busbar heating were considered and compared. The most advanced model, which couples the thermal and electromagnetic fields in two ways, was also compared with the simplified approaches. First, the direct current loading of the busbar, which neglected the alternating current effects, was considered. Second, models that included only one method of coupling were calculated for different assumed average busbar temperatures. Finally, the model with the two-way coupling, which took the eddy currents and proximity effects into account, was simulated using an iteration loop between the electromagnetic and fluid flow solvers. This study employed a geometrical model of industrial low-voltage switchgear. The presented mathematical model was also validated against temperature measurements carried out by a certified laboratory. The obtained results show that a fully coupled model produces very satisfactory agreement between computed and experimental data.

Mateusz Bedkowski; Jacek Smolka; Krzysztof Banasiak; Zbigniew Bulinski; Andrzej J. Nowak; Tomasz Tomanek; Adam Wajda

2014-01-01T23:59:59.000Z

270

Space-reactor electric systems: subsystem technology assessment  

SciTech Connect (OSTI)

This report documents the subsystem technology assessment. For the purpose of this report, five subsystems were defined for a space reactor electric system, and the report is organized around these subsystems: reactor; shielding; primary heat transport; power conversion and processing; and heat rejection. The purpose of the assessment was to determine the current technology status and the technology potentials for different types of the five subsystems. The cost and schedule needed to develop these potentials were estimated, and sets of development-compatible subsystems were identified.

Anderson, R.V.; Bost, D.; Determan, W.R.

1983-03-29T23:59:59.000Z

271

Electricity Distribution Systems: How Information Will Lead the Transformation  

Broader source: Energy.gov (indexed) [DOE]

IBM IBM Electricity Distribution Systems How information will lead the transformation Allan Schurr VP Energy and Utilities 24 September 2012 Corporation Challenges facing the energy grid New entrants and disruptive technologies environmental concerns Increased pressure on Climate change and Aging asset performance operational efficiency with increased expectations and workforce on reliability productivity Increasing desire by consumers for a role in energy management and Growth in renewable generation and distributed resources conservation © 2012 IBM Corporation 2 Other transformed industries have lessons for the power grid Common Themes * Technology innovation * Disruptive new entrants * New business models Benefits for the consumer © 2012 IBM Corporation

272

Lincoln Electric System (Commercial and Industrial) - Sustainable Energy  

Broader source: Energy.gov (indexed) [DOE]

Commercial and Industrial) - Sustainable Commercial and Industrial) - Sustainable Energy Program Lincoln Electric System (Commercial and Industrial) - Sustainable Energy Program < Back Eligibility Commercial Industrial Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Manufacturing Home Weatherization Commercial Weatherization Sealing Your Home Ventilation Construction Heat Pumps Appliances & Electronics Commercial Lighting Lighting Maximum Rebate '''General Incentive Limits''' Commercial Industrial Lighting Retrofit: $100,000 per program year Commercial and Industrial Energy Efficiency: $100,000 per program year Program Info State Nebraska Program Type Utility Rebate Program Rebate Amount Commercial Industrial Lighting Retrofit Lighting Retrofit: $500/kW of peak-demand reduction

273

Electric Boosting System for Light Truck/SUV Application  

SciTech Connect (OSTI)

Turbo diesel engine use in passenger cars in Europe has resulted in 30-50% improvement in fuel economy. Diesel engine application is particularly suitable for US because of vehicle size and duty cycle patterns. Adopting this technology for use in the US presents two issues--emissions and driveability. Emissions reduction technology is being well addressed with advanced turbocharging, fuel injection and catalytic aftertreatment systems. One way to address driveability is to eliminate turbo lag and increase low speed torque. Electrically assisted turbocharging concepts incorporated in e-TurboTM designs do both. The purpose of this project is to design and develop an electrically assisted turbocharger, e-TurboTM, for diesel engine use in the US. In this report, early design and development of electrical assist technology is described together with issues and potential benefits. In this early phase a mathematical model was developed and verified. The model was used in a sensitivity study. The results of the sensitivity study together with the design and test of first generation hardware was fed into second generation designs. In order to fully realize the benefits of electrical assist technology it was necessary to expand the scope of work to include technology on the compressor side as well as electronic controls concepts. The results of the expanded scope of work are also reported here. In the first instance, designs and hardware were developed for a small engine to quantify and demonstrate benefits. The turbo size was such that it could be applied in a bi-turbo configuration to an SUV sized V engine. Mathematical simulation was used to quantify the possible benefits in an SUV application. It is shown that low speed torque can be increased to get the high performance expected in US, automatic transmission vehicles. It is also shown that e-TurboTM can be used to generate modest amounts of electrical power and supplement the alternator under most load-speed conditions. It is shown that a single (large) e-TurboTM consumes slightly less electrical power for the same steady state torque shaping than a bi-Turbo configuration. However, the transient response of a bi-Turbo configuration in slightly better. It was shown that in order to make full use of additional capabilities of e-TurboTM wide compressor flow range is required. Variable geometry compressor (VGC) technology developed under a separate project was evaluated for incorporation into e-TurboTM designs. It was shown that the combination of these two technologies enables very high torque at low engine speeds. Designs and hardware combining VGC and e-TurboTM are to be developed in a future project. There is concern about high power demands (even though momentary) of e-TurboTM. Reducing the inertia of the turbocharger can reduce power demand and increase battery life. Low inertia turbocharger technology called IBT developed under a separate project was evaluated for synergy with e-TurboTM designs. It was concluded that inertial reduction provided by IBT is very beneficial for e-TurboTM. Designs and hardware combining IBT and e-TurboTM are to be developed in a future project. e-TurboTM provides several additional flexibilities including exhaust gas recirculation (EGR) for emissions reduction with minimum fuel economy penalty and exhaust temperature control for aftertreatment. In integrated multi-parameter control system is needed to realize the full potential of e-TurboTM performance. Honeywell expertise in process control systems involving hundreds of sensors and actuators was applied to demonstrate the potential benefits of multi-parameter, model based control systems.

Steve Arnold, Craig Balis, Pierre Barthelet, Etienne Poix, Tariq Samad, Greg Hampson, S.M. Shahed

2005-06-22T23:59:59.000Z

274

The Electricity Transmission System Future Vision & Grid Challenges  

Broader source: Energy.gov (indexed) [DOE]

Future Vision & Grid Challenges Future Vision & Grid Challenges Summary Results of Breakout Group Discussions Electricity Transmission Workshop Double Tree Crystal City, Arlington, Virginia November 1, 2012 Breakout Group Discussion Overview Future Vision and Grid Challenges Each of the four breakout groups identified the key challenges facing the grid as it integrates all of the various technologies that are (or will be) deployed while ensuring a safe, reliable, and cost-effective system as described in the Future Vision. Utilizing the Grid Tech Team framework, each group identified integration challenges through a systems-based discussion that addressed all of the following topics: * Grid Visibility What challenges in the informational domain (sensors and relays, AMIs, PMUs, end-use energy

275

A robust approach for planning electric power systems associated with environmental policy analysis  

Science Journals Connector (OSTI)

In this study, a fractile-based robust stochastic programming (FRSP) method is developed for planning electric power systems under uncertainty. FRSP can tackle uncertainties expressed as possibilistic and probabilistic distributions in constraints and objective function. The developed FRSP is applied to long-term electric power systems planning, where two cases are examined based on different greenhouse gas (GHG) and air-pollutant management policies. During power-generation processes, various losses may affect energy consumption rate, leading to uncertainties in energy conversion efficiency. From a long-term planning point of view, energy demands from multiple end-users may vary due to population increase and economic development. A variety of scenarios associated with different levels of energy conversion efficiency and energy demand are analyzed. Decision variables with p-necessity are useful for managers to sustain and/or modify the decision schemes for energy activities through incorporation of their implicit knowledge. The results obtained can not only be used for generating desired energy resource/service distribution, but also help decision makers identify desired policies for GHG and air-pollutant mitigation with a cost-effective manner.

Y. Zhou; Y.P. Li; G.H. Huang; Y. Zhou

2013-01-01T23:59:59.000Z

276

Monitoring Battery System for Electric Vehicle, Based On "One Wire" Technology  

E-Print Network [OSTI]

Santiago, Chile jdixon@ing.puc.cl Abstract-- A monitoring system for a battery powered electric vehicle (EV- powered electric vehicles, the need for fast information related to different components and equipmentMonitoring Battery System for Electric Vehicle, Based On "One Wire" Technology Javier Ibáñez Vial

Catholic University of Chile (Universidad Católica de Chile)

277

Monitoring System for Testing the Performance of an Electric Vehicle Using Ultracapacitors  

E-Print Network [OSTI]

Monitoring System for Testing the Performance of an Electric Vehicle Using Ultracapacitors Juan W. Dixon, Micah Ortúzar and Jorge Moreno Abstract A monitoring system for an Electric Vehicle, which uses of ultracapacitors in combination with batteries in electric vehicles. The efficiency gain is being monitored

Catholic University of Chile (Universidad Católica de Chile)

278

Implementation and Evaluation of an Ultracapacitor-Based Auxiliary Energy System for Electric Vehicles  

E-Print Network [OSTI]

of an ultracapacitor bank and a buck- boost converter, was installed in an electric vehicle, which is powered by a lead Vehicles Micah Ortúzar, Jorge Moreno and Juan Dixon (SM IEEE) Department of Electrical Engineering system for electric vehicles was designed, implemented and tested. The system, composed

Catholic University of Chile (Universidad Católica de Chile)

279

A Framework for Multi-Level Reliability Evaluation of Electrical Energy Systems  

E-Print Network [OSTI]

A Framework for Multi-Level Reliability Evaluation of Electrical Energy Systems Alejandro D. Dom@illinois.edu Abstract--This paper proposes a framework for multi-level reliability evaluation of electrical energy intended function or in which degraded performance is not allowed. Electrical energy systems are highly

Liberzon, Daniel

280

Potential Energy Total electric potential energy, U, of a system of  

E-Print Network [OSTI]

Potential Energy Total electric potential energy, U, of a system of charges is obtained from of work done by the field, W*= -W. Bring q1 from , W *= 0 since no electric F yet #12;Potential Energy Total electric potential energy, U, of a system of charges is obtained from the work done by an external

Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Control system and method for a hybrid electric vehicle  

DOE Patents [OSTI]

A vehicle system controller (20) is presented for a LSR parallel hybrid electric vehicle having an engine (10), a motor (12), wheels (14), a transmission (16) and a battery (18). The vehicle system controller (20) has a state machine having a plurality of predefined states (22-32) that represent operating modes for the vehicle. A set of rules is defined for controlling the transition between any two states in the state machine. The states (22-32) are prioritized according to driver demands, energy management concerns and system fault occurrences. The vehicle system controller (20) controls the transitions from a lower priority state to a higher priority state based on the set of rules. In addition, the vehicle system controller (20) will control a transition to a lower state from a higher state when the conditions no longer warrant staying in the current state. A unique set of output commands is defined for each state for the purpose of controlling lower level subsystem controllers. These commands serve to achieve the desire vehicle functionality within each state and insure smooth transitions between states.

Phillips, Anthony Mark (Northville, MI); Blankenship, John Richard (Dearborn, MI); Bailey, Kathleen Ellen (Dearborn, MI); Jankovic, Miroslava (Birmingham, MI)

2001-01-01T23:59:59.000Z

282

Production Cost Modeling of Cogenerators in an Interconnected Electric Supply System  

E-Print Network [OSTI]

The Optimal State Electricity Supply System in Texas (OSEST) research project is part of the continuing Public Utility Commission of Texas (PUCT) effort to identify possible improvements in the production, transmission, and use of electricity...

Ragsdale, K.

283

Production and maintenance planning for electricity generators: modeling and application to Indian power systems  

E-Print Network [OSTI]

Production and maintenance planning for electricity generators: modeling and application to Indian power systems Debabrata Chattopadhyay Department of Management, University of Canterbury, Private Bag describes the development of an optimization model to perform the fuel supply, electricity generation

Dragoti-Ã?ela, Eranda

284

Electrical power systems (Brazil, Chile, Colombia, Dominican Republic, Guatemala, Jamaica, Panama and Peru)  

SciTech Connect (OSTI)

This 12-part set of reports contains market information on the following countries and topics: Brazil - potentiometers, steam turbines, gas turbines, electric generators; Chile - power systems; Colombia - electric generators; Dominican Republic - electric generators; Guatemala - power generation and distribution equipment, non-current carriers, electric generators, and turbines; Jamaica - power systems; Panama - power generation and control equipment; and Peru - power generation equipment. These reports have been processed separately for inclusion on the data base.

Not Available

1992-01-01T23:59:59.000Z

285

Performance of International Space Station Alpha electric power systems  

SciTech Connect (OSTI)

The International Space Station Alpha (ISSA) will be an Earth-orbiting laboratory in space. It will house experimental payloads, distribute resource utilities, and support human habitation for conducting research and science experiments in a microgravity environment. Electrical power is a major utility to support successful achievement of the mission goal. The ISSA United States On-Orbit Segment (USOS) Electric Power System (EPS) power generation capability will vary with orbital parameters, natural and induced environment, and hardware aging/replacement throughout the ISSA life. Power capability will be further restricted by various assembly configurations during ISSA buildup, by various flight attitudes, by shadowing on the solar arrays, by EPS operational constraints, such as pointing accuracy, battery charging, as well as operating voltage setpoints, and by ISSA operational constraints either to avoid long-term solar array shadowing from the adjacent solar array or to accommodate ISSA maneuver during proximity operations with other space vehicles, mating, and departing. Design of the ISSA USOS EPS takes into consideration the various equipment degradation modes, operation constraints, and orbital conditions to make it compatible with the environments and to meet power, lifetime, and performance requirements.

Hill, R.; Lu, C.Y.; Padhye, V.; Hajela, G.; Hague, L. [Rockwell International, Canoga Park, CA (United States). Rocketdyne Division

1995-12-31T23:59:59.000Z

286

ELECTRIC  

Office of Legacy Management (LM)

ELECTRIC ELECTRIC cdrtrokArJclaeT 3 I+ &i, y$ \I &OF I*- j< t j,fci..- ir )(yiT !E-li, ( \-,v? Cl -p/4.4 RESEARCH LABORATORIES EAST PITTSBURGH, PA. 8ay 22, 1947 Mr. J. Carrel Vrilson General ?!!mager Atomic Qxzgy Commission 1901 Constitution Avenue Kashington, D. C. Dear Sir: In the course of OUT nuclenr research we are planning to study the enc:ri;y threshold anti cross section for fission. For thib program we require a s<>piAroted sample of metallic Uranium 258 of high purity. A quantity of at lezst 5 grams would probably be sufficient for our purpose, and this was included in our 3@icntion for license to the Atonic Energy Coskqission.. This license has been approved, 2nd rre would Llp!Jreciate informztion as to how to ?r*oceed to obtain thit: m2teria.l.

287

The National Energy Modeling System: An Overview 1998 - Electricity Market  

Gasoline and Diesel Fuel Update (EIA)

ELECTRICITY MARKET MODULE ELECTRICITY MARKET MODULE blueball.gif (205 bytes) Electricity Capacity Planning Submodule blueball.gif (205 bytes) Electricity Fuel Dispatch Submodule blueball.gif (205 bytes) Electricity Finance and Pricing Submodule blueball.gif (205 bytes) Load and Demand-Side Management Submodule blueball.gif (205 bytes) Emissions The electricity market module (EMM) represents the generation, transmission, and pricing of electricity, subject to: delivered prices for coal, petroleum products, and natural gas; the cost of centralized generation from renewable fuels; macroeconomic variables for costs of capital and domestic investment; and electricity load shapes and demand. The submodules consist of capacity planning, fuel dispatching, finance and pricing, and load and demand-side management (Figure 9). In addition,

288

Vehicle Technologies Office: Materials for Hybrid and Electric Drive Systems  

Broader source: Energy.gov [DOE]

The Vehicle Technologies Office (VTO) is working to lower the cost and increase the convenience of electric drive vehicles, which include hybrid and plug-in electric vehicles. These vehicles use...

289

Life-Cycle Assessment of Electric Power Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Life-Cycle Life-Cycle Assessment of Electric Power Systems Eric Masanet, 1 Yuan Chang, 1 Anand R. Gopal, 2 Peter Larsen, 2,3 William R. Morrow III, 2 Roger Sathre, 2 Arman Shehabi, 2 and Pei Zhai 2 1 McCormick School of Engineering and Applied Science, Northwestern University, Evanston, Illinois 60208; email: eric.masanet@northwestern.edu, yuan.chang@northwestern.edu 2 Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720; email: argopal@lbl.gov, wrmorrow@lbl.gov, rsathre@lbl.gov, ashehabi@lbl.gov, pzhai@lbl.gov 3 Management Science and Engineering Department, Stanford University, Stanford, California 94305; email: phlarsen@lbl.gov Annu. Rev. Environ. Resour. 2013. 38:107-36 First published online as a Review in Advance on August 7, 2013 The Annual Review of Environment and Resources is online at http://environ.annualreviews.org

290

AFTER A Framework for electrical power sysTems vulnerability  

Open Energy Info (EERE)

vulnerability vulnerability identification, dEfense and Restoration (Smart Grid Project) (United Kingdom) Jump to: navigation, search Project Name AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration Country United Kingdom Coordinates 55.378052°, -3.435973° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":55.378052,"lon":-3.435973,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

291

Electrical Systems And Safety Oversight Functional Area Qualification Standard  

Broader source: Energy.gov (indexed) [DOE]

0-2007 0-2007 August 2007 DOE STANDARD ELECTRICAL SYSTEMS AND SAFETY OVERSIGHT FUNCTIONAL AREA QUALIFICATION STANDARD DOE Defense Nuclear Facilities Technical Personnel U.S. Department of Energy AREA TRNG Washington, D.C. 20585 DISTRBUTION STATEMENT A. Approved for public release; distribution is unlimited. DOE-STD-1170-2007 ii This document has been reproduced directly from the best available copy. Available to DOE and DOE contractors from ES&H Technical Information Services, U.S. Department of Energy, (800) 473-4375, fax: (301) 903-9823. Available to the public from the U.S. Department of Commerce, Technology Administration, National Technical Information Service, Springfield, VA 22161, (703) 605-6000 or (800) 553-6847.

292

GROWDERS Demonstration of Grid Connected Electricity Systems (Smart Grid  

Open Energy Info (EERE)

(Spain) (Spain) Jump to: navigation, search Project Name GROWDERS Demonstration of Grid Connected Electricity Systems Country Spain Coordinates 40.338169°, -3.438721° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.338169,"lon":-3.438721,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

293

AFTER A Framework for electrical power sysTems vulnerability  

Open Energy Info (EERE)

Czech Czech Republic) Jump to: navigation, search Project Name AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration Country Czech Republic Coordinates 49.817493°, 15.472962° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":49.817493,"lon":15.472962,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

294

AFTER A Framework for electrical power sysTems vulnerability  

Open Energy Info (EERE)

Ireland) Ireland) Jump to: navigation, search Project Name AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration Country Ireland Coordinates 53.41291°, -8.24389° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":53.41291,"lon":-8.24389,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

295

AFTER A Framework for electrical power sysTems vulnerability  

Open Energy Info (EERE)

Belgium) Belgium) Jump to: navigation, search Project Name AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration Country Belgium Coordinates 50.359482°, 4.63623° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":50.359482,"lon":4.63623,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

296

Role of LM in Californias electricity system  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Rates and Technologies for Mass-Market Demand Response Rates and Technologies for Mass-Market Demand Response Karen Herter, Lawrence Berkeley National Laboratory Roger Levy, Levy Associates John Wilson, California Energy Commission Arthur Rosenfeld, California Energy Commission ABSTRACT Demand response programs are often quickly and poorly crafted in reaction to an energy crisis and disappear once the crisis subsides, ensuring that the electricity system will be unprepared when the next crisis hits. In this paper, we propose to eliminate the event- driven nature of demand response programs by considering demand responsiveness a component of the utility obligation to serve. As such, demand response can be required as a condition of service, and the offering of demand response rates becomes a requirement of

297

Feedstock Logistics of a Mobile Pyrolysis System and Assessment of Soil Loss Due to Biomass Removal for Bioenergy Production  

E-Print Network [OSTI]

The purpose of this study was to assess feedstock logistics for a mobile pyrolysis system and to quantify the amount of soil loss caused by harvesting agricultural feedstocks for bioenergy production. The analysis of feedstock logistics...

Bumguardner, Marisa

2012-10-19T23:59:59.000Z

298

Electrical Characterization Laboratory (Fact Sheet), NREL (National Renewable Energy Laboratory), Energy Systems Integration Facility (ESIF)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Electrical Characterization Electrical Characterization Laboratory may include: * Equipment manufacturers * Universities * Other National laboratories Contact Us If you are interested in working with NREL's Energy Systems Integration Laboratory, please contact: ESIF Manager Carolyn Elam Carolyn.Elam@nrel.gov 303-275-4311 Electrical Characterization Laboratory Electrical Characterization Laboratory at NREL's Energy Systems Integration Facility (ESIF) focuses on the detailed electrical characterization of components and systems. This laboratory allows researchers to test the ability of equipment to withstand high voltage surges and high current faults, including equipment using

299

Reliability of the Beam Loss Monitors System for the Large Hadron Collider at CERN  

E-Print Network [OSTI]

The energy stored in the Large Hadron Collider is unprecedented. The impact of the beam particles can cause severe damage on the superconductive magnets, resulting in significant downtime for repairing. The Beam Loss Monitors System (BLMS) detects the secondary particles shower of the lost beam particles and initiates the extraction of the beam before any serious damage to the equipment can occur. This thesis defines the BLMS specifications in term of reliability. The main goal is the design of a system minimizing both the probability to not detect a dangerous loss and the number of false alarms generated. The reliability theory and techniques utilized are described. The prediction of the hazard rates, the testing procedures, the Failure Modes Effects and Criticalities Analysis and the Fault Tree Analysis have been used to provide an estimation of the probability to damage a magnet, of the number of false alarms and of the number of generated warnings. The weakest components in the BLMS have been pointed out....

Guaglio, G; Santoni, C

2005-01-01T23:59:59.000Z

300

Electricity Market Complex Adaptive System | Open Energy Information  

Open Energy Info (EERE)

Market Complex Adaptive System Market Complex Adaptive System Jump to: navigation, search Tool Summary Name: Electricity Market Complex Adaptive System Agency/Company /Organization: Argonne National Laboratory Sector: Energy Phase: Determine Baseline, Evaluate Options Topics: Pathways analysis Resource Type: Software/modeling tools User Interface: Desktop Application Website: www.dis.anl.gov/projects/emcas.html Country: United States Cost: Paid Northern America Coordinates: 37.09024°, -95.712891° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.09024,"lon":-95.712891,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Renewable Electricity Futures Study. Volume 4: Bulk Electric Power Systems: Operations and Transmission Planning  

SciTech Connect (OSTI)

The Renewable Electricity Futures (RE Futures) Study investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. The analysis focused on the sufficiency of the geographically diverse U.S. renewable resources to meet electricity demand over future decades, the hourly operational characteristics of the U.S. grid with high levels of variable wind and solar generation, and the potential implications of deploying high levels of renewables in the future. RE Futures focused on technical aspects of high penetration of renewable electricity; it did not focus on how to achieve such a future through policy or other measures. Given the inherent uncertainties involved with analyzing alternative long-term energy futures as well as the multiple pathways that might be taken to achieve higher levels of renewable electricity supply, RE Futures explored a range of scenarios to investigate and compare the impacts of renewable electricity penetration levels (30%-90%), future technology performance improvements, potential constraints to renewable electricity development, and future electricity demand growth assumptions. RE Futures was led by the National Renewable Energy Laboratory (NREL) and the Massachusetts Institute of Technology (MIT).

Milligan, M.; Ela, E.; Hein, J.; Schneider, T.; Brinkman, G.; Denholm, P.

2012-06-01T23:59:59.000Z

302

Could Your Home Benefit from a Small Wind Electric System? | Department of  

Broader source: Energy.gov (indexed) [DOE]

Could Your Home Benefit from a Small Wind Electric System? Could Your Home Benefit from a Small Wind Electric System? Could Your Home Benefit from a Small Wind Electric System? August 8, 2013 - 2:31pm Addthis A small wind electric system can be a clean, affordable way to power your home. | Photo courtesy of Thomas Fleckenstein, NREL 26476 A small wind electric system can be a clean, affordable way to power your home. | Photo courtesy of Thomas Fleckenstein, NREL 26476 Erik Hyrkas Erik Hyrkas Media Relations Specialist, Office of Energy Efficiency & Renewable Energy How can I participate? Check out these resources to figure out whether a small wind electric system is the right choice for you. Small residential wind turbines have been around for decades, and in recent years they have become a more affordable option due to tax credits and

303

Control System Development for an Advanced-Technology Medium-Duty Hybrid Electric Truck  

E-Print Network [OSTI]

diesel engine, an electric motor, a Lithium-Ion battery, and an Eaton automated manual transmission03TB-45 Control System Development for an Advanced-Technology Medium-Duty Hybrid Electric Truck and vehicle test results for a medium-duty hybrid electric truck are reported in this paper. The design

Grizzle, Jessy W.

304

Design of Electric or Hybrid vehicle alert sound system for pedestrian  

E-Print Network [OSTI]

Design of Electric or Hybrid vehicle alert sound system for pedestrian J.-C. Chamard and V, France 1691 #12;The arrival of fully or hybrid electric vehicles raised safety problems respect the environment to warn of his approach. However, hybrid and electric vehicles can potentially be dangerous

Boyer, Edmond

305

Critical issues and current views on teaching basic circuits and systems in electrical engineering education  

E-Print Network [OSTI]

education Joos Vandewalle Department of Electrical Engineering (ESAT) Katholieke Universiteit Leuven B-3001, its impact in the electrical engineering education and in order to increase the intrinsic interestCritical issues and current views on teaching basic circuits and systems in electrical engineering

306

Electric Arc Locator in Photovoltaic Power Systems Using Advanced Signal Processing Techniques  

E-Print Network [OSTI]

in detecting the partial discharges associated with the production of an electric arc in a high voltage power in fault detection and localization. In [1] we have shown that electric arc (or partial dischargeElectric Arc Locator in Photovoltaic Power Systems Using Advanced Signal Processing Techniques

Paris-Sud XI, Université de

307

Electric Motor Drive Selection Issues for HEV Propulsion Systems: A Comparative Study  

E-Print Network [OSTI]

Electric Motor Drive Selection Issues for HEV Propulsion Systems: A Comparative Study M. Zeraoulia1 Combustion Engine (ICE) and the electric motor to deliver power in parallel to drive the wheels. Since both the ICE and electric motor are generally coupled to the drive shaft of the wheels via two clutches

Paris-Sud XI, Université de

308

Electrical-Thermal Co-analysis for Power Delivery Networks in 3D System Integration  

E-Print Network [OSTI]

Electrical-Thermal Co-analysis for Power Delivery Networks in 3D System Integration Jianyong Xie1 Rubin3 1 School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332 2 IBM Package Design, Development, and Electrical Services Group, Poughkeepsie, N.Y. 12601 3 IBM T

Swaminathan, Madhavan

309

An Electricity Trade Model for Multiple Power Distribution Networks in Smart Energy Systems  

E-Print Network [OSTI]

An Electricity Trade Model for Multiple Power Distribution Networks in Smart Energy Systems-interactive [1]-[3]. In order to switch from a centralized power distribution network (in which electrical energy Tiansong Cui, Yanzhi Wang, Shahin Nazarian, and Massoud Pedram Department of Electrical Engineering

Pedram, Massoud

310

IEEE TRANSACTIONS ON POWER SYSTEMS 1 Economic Impact of Electricity Market Price  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON POWER SYSTEMS 1 Economic Impact of Electricity Market Price Forecasting Errors to forecast electricity market prices and improve forecast accuracy. However, no studies have been reported, the application of electricity market price forecasts to short-term operation scheduling of two typical

Cañizares, Claudio A.

311

C. -AMORPHOUS METALLIC SYSTEMS. TEMPERATURE DEPENDENCE OF THE ELECTRICAL RESISTIVITY OF  

E-Print Network [OSTI]

C. - AMORPHOUS METALLIC SYSTEMS. TEMPERATURE DEPENDENCE OF THE ELECTRICAL RESISTIVITY OF AMORPHOUS of the electrical resistivity is explained with conduction electrons being scattered by p %. In a previous paper [I] it has been shown that the electrical resistivity of amorphous Ga, Sn and Pb alloys

Paris-Sud XI, Université de

312

Electric power grid control using a market-based resource allocation system  

DOE Patents [OSTI]

Disclosed herein are representative embodiments of methods, apparatus, and systems for distributing a resource (such as electricity) using a resource allocation system. In one exemplary embodiment, a plurality of requests for electricity are received from a plurality of end-use consumers. The requests indicate a requested quantity of electricity and a consumer-requested index value indicative of a maximum price a respective end-use consumer will pay for the requested quantity of electricity. A plurality of offers for supplying electricity are received from a plurality of resource suppliers. The offers indicate an offered quantity of electricity and a supplier-requested index value indicative of a minimum price for which a respective supplier will produce the offered quantity of electricity. A dispatched index value is computed at which electricity is to be supplied based at least in part on the consumer-requested index values and the supplier-requested index values.

Chassin, David P

2014-01-28T23:59:59.000Z

313

Intelligent Control Systems for Futuristic Smart Grid Initiatives in Electric Utilities  

Science Journals Connector (OSTI)

Substation Automation Systems (SAS) provide reliable bedrock for future smart grid development in electric utilities. Implementation of high quality SAS system enables one to experience less outage rate using the state-of-the-art computerized functions ... Keywords: Intelligent Control Systems, Futuristic Smart Grid Initiatives, Electric Utilities

Hossein Zeynal, Mostafa Eidiani, Dariush Yazdanpanah

2013-12-01T23:59:59.000Z

314

Energy Management System for an Hybrid Electric Vehicle, Using Ultracapacitors and Neural Networks  

E-Print Network [OSTI]

Energy Management System for an Hybrid Electric Vehicle, Using Ultracapacitors and Neural Networks management system for hybrid electric vehicles (HEV), using neural networks (NN), was developed and tested. The system minimizes the energy requirement of the vehicle and can work with different primary power sources

Catholic University of Chile (Universidad Católica de Chile)

315

Wing Wave: Feasible, Alternative, Renewable, Electrical Energy Producing Ocean Floor System  

E-Print Network [OSTI]

Wing Wave: Feasible, Alternative, Renewable, Electrical Energy Producing Ocean Floor System Mark, alternative energy system to convert the circular motion of ocean waves as they propagate through the sea and feasible alternative, renewable, electrical energy producing subsea system. Index Terms--ocean energy, wave

Wood, Stephen L.

316

Transmission and Grid Integration: Electricity, Resources, & Building Systems Integration (Fact Sheet)  

SciTech Connect (OSTI)

Factsheet developed to describe the activites of the Transmission and Grid Integration Group within NREL's Electricity, Resources, and Buildings Systems Integration center.

Not Available

2009-09-01T23:59:59.000Z

317

A System for Measuring the Active Power of the Asynchronous Motor of a Lathe Electric Drive  

Science Journals Connector (OSTI)

A system for measuring the active power of the asynchronous motor of a lathe electric drive is described. The possibility of using...

V. A. Kuzovkin; V. V. Filatov; A. N. Porvatov; A. N. Porvatova

2014-05-01T23:59:59.000Z

318

Homeowners Guide to Financing a Grid-Connected Solar Electric System (Brochure)  

SciTech Connect (OSTI)

This guide provides an overview of the financing options that may be available to homeowners who are considering installing a solar electric system on their house.

Not Available

2010-10-01T23:59:59.000Z

319

Systems for Electrical Power from Coproduced and Low Temperature Geothermal Resources  

Broader source: Energy.gov [DOE]

Presentation about Systems for Electrical Power from Coproduced and Low Temperature Geothermal Resources includes background, results and discussion, future plans and conclusion.

320

Building America System Research Plan for Reduction of Miscellaneous Electrical Loads in Zero Energy Homes  

SciTech Connect (OSTI)

This research plan describes the overall scope of system research that is needed to reduce miscellaneous electrical loads (MEL) in future net zero energy homes.

Barley, C. D.; Haley, C.; Anderson, R.; Pratsch, L.

2008-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

REGULATION AND SYSTEM INTERDEPENDENCE: EFFECTS ON THE SITING OF CALIFORNIA ELECTRICAL ENERGY FACILITIES  

E-Print Network [OSTI]

some interesting problems. In particular, solar energy Forsolar energy to meet their hot water requirements and install electrical backup systems, how should the utilities deal with the problem

Kooser, J.C.

2013-01-01T23:59:59.000Z

322

Building a wireless mesh networked real-time electricity metering system in an MIT dormitory .  

E-Print Network [OSTI]

??A competitive, closed-loop information feedback system of wireless electricity meters was designed, tested, and implemented in seven MIT dormitory rooms. The meters utilized Allegro Hall… (more)

Oehlerking, Austin L

2009-01-01T23:59:59.000Z

323

Second law analysis of a liquid cooled battery thermal management system for hybrid and electric vehicles.  

E-Print Network [OSTI]

??As hybrid and electric vehicles continue to evolve there is a need for better battery thermal management systems (BTMS), which maintain uniformity of operating temperature… (more)

Ramotar, Lokendra

2010-01-01T23:59:59.000Z

324

Blackout 2003: Electric System Working Group Technical Conference- Comments and Recommendations  

Broader source: Energy.gov [DOE]

December 16, 2003 Electric System Working Group Technical Conference, Philadelphia PA - Summary of comments and recommendations relating to the aftermath of the August 2003 blackout.

325

Multi-objective planning of electrical distribution systems using dynamic programming  

Science Journals Connector (OSTI)

This paper presents a novel dynamic programming approach for multi-objective planning of electrical distribution systems. In this planning, the optimal feeder routes and branch conductor sizes of a distribution system are determined by simultaneous optimization of cost and reliability. The multiple planning objectives are minimization of: (i) installation and operational cost, and (ii) interruption cost. The first objective function consists of the installation cost of new feeder branches and substations, maintenance cost of the existing and new feeder branches, and the cost of energy losses. The second objective function measures the reliability of the distribution network in terms of the associated interruption costs for all the branches, which includes the cost of non-delivered energy, cost of repair, and the customer damage cost due to interruptions. A dynamic programming based planning algorithm for optimization of the feeder routes and branch conductor sizes is proposed. A set of Pareto solutions is obtained using a weighted aggregation of the two objectives with different weight settings. The proposed approach is evaluated on 21-, 54-, and 100-node distribution systems. The simulation test results are analyzed with various case studies and are compared with those of two existing planning approaches based on multi-objective evolutionary algorithm.

S. Ganguly; N.C. Sahoo; D. Das

2013-01-01T23:59:59.000Z

326

The National Energy Modeling System: An Overview 2000 - Electricity Market  

Gasoline and Diesel Fuel Update (EIA)

electricity market module (EMM) represents the generation, transmission, and pricing of electricity, subject to: delivered prices for coal, petroleum products, and natural gas; the cost of centralized generation from renewable fuels; macroeconomic variables for costs of capital and domestic investment; and electricity load shapes and demand. The submodules consist of capacity planning, fuel dispatching, finance and pricing, and load and demand-side management (Figure 9). In addition, nonutility supply and electricity trade are represented in the fuel dispatching and capacity planning submodules. Nonutility generation from cogenerators and other facilities whose primary business is not electricity generation is represented in the demand and fuel supply modules. All other nonutility generation is represented in EMM. The generation of electricity is accounted for in 15 supply regions (Figure 10), and fuel consumption is allocated to the 9 Census divisions.

327

Electricity Bill Savings from Residential Photovoltaic Systems: Sensitivities to Changes in Future Electricity Market Conditions  

E-Print Network [OSTI]

including geothermal, small hydro, and biogas, as well as noby biomass, 1.5% by small hydro, and 0.3% by PV. The pricebiomass, geothermal, and small hydro electricity generation

Darghouth, Naim

2014-01-01T23:59:59.000Z

328

The electric delivery system-a complex network of transmission and distribu  

Broader source: Energy.gov (indexed) [DOE]

electric delivery system-a complex network of transmission and distribu- electric delivery system-a complex network of transmission and distribu- tion lines, substations, and electrical components-is aging. To deliver more electricity and ensure reliability, the grid needs to be modernized. As the grid is being upgraded, it is also being challenged by increased needs to integrate variable renewable energy resources such as solar and wind, the potential growth of electric vehicles and related charging infrastructure, and the potential development of new electricity market designs and operating practices. To help decision makers better understand how these changes and challenges are shaping electricity delivery systems, as well as provide the industry with the tools necessary to cope with the new designs, the Reliability and Markets activ-

329

Wind Power and Its Impact on the Moldovan Electrical System.  

E-Print Network [OSTI]

?? The master thesis project has been executed with the cooperation of Borlänge Energi, with the aim of reducing the high electric energy dependency which… (more)

Eriksson, Joel

2012-01-01T23:59:59.000Z

330

System Simulations of Hybrid Electric Vehicles with Focus on...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

with Focus on Emissions Comparative simulations of hybrid electric vehicles with gasoline and diesel engines will be conducted with focus on emissions control. deer10gao.pdf...

331

The University of Mississippi Department of Electrical EngineeringCenterofAppliedElectromagneticSystemsResearch(CAESR) The University of Mississippi Department of Electrical EngineeringCenterofAppliedElectromagneticSystemsResearch(CAESR) Optimizing Multip  

E-Print Network [OSTI]

=100, NY=100 Computation Time vs Domain Size #12;The University of Mississippi Department of ElectricalThe University of Mississippi Department of Electrical EngineeringCenterofAppliedElectromagneticSystemsResearch(CAESR) The University of Mississippi Department of Electrical Engineering

Elsherbeni, Atef Z.

332

Testing Results of Magnetostrictive Ultrasonic Sensor Cables for Signal Loss  

SciTech Connect (OSTI)

The purpose of this test was to determine the signal strength and resolution losses of a magnetostrictive ultrasonic system with an extended signal cable. The cable of interest carries electrical signals between the pulse generator/receiver and the magnetostrictive transducer. It was desired to determine the loss introduced by different lengths of the signal cable (6', 100', and 200').

JT Evans

2005-05-01T23:59:59.000Z

333

Power Systems Engineering Research Center Renewable Electricity Futures  

E-Print Network [OSTI]

levels of renewable electricity, including variable wind and solar generation. The study also identifies Laboratory. His particular interest is in capacity expansion and dispatch modeling of the electric- ity earned his PhD in theoretical physics from the University of California Santa Cruz. Speaker Contact

Van Veen, Barry D.

334

Electrical Equipment Replacement: Energy Efficiency versus System Compatibility  

E-Print Network [OSTI]

upgrading electrical equipment to energy efficient models, including conductor sizing, overcurrent protective devices, grounding, and harmonics. The pages that follow provide guidance in the decision-making process when replacing electrical equipment... equipment. Several areas of compatibility must be addressed for equipment to work properly. Critical areas of concern are conductor sizing, overcurrent protection devices, grounding, and harmonics. Conductor Sizing Conductors are sized...

Massey, G. W.

2005-01-01T23:59:59.000Z

335

Method of and system for producing electrical power  

SciTech Connect (OSTI)

A method and system for converting the chemical energy of methane to electrical energy. Methane is thermally decomposed to hydrogen and carbon in a decomposing unit at a temperature not less than about 1200{degree}K and at a pressure at least slightly above atmospheric pressure. Carbon and substantially pure oxygen and a cesium or potassium seed material is transmitted to a combustor which is maintained at a pressure of at least about 50 atmospheres to combust the carbon and oxygen and provide an ionized plasma having a temperature not less than about 2900{degree}K. The ionized plasma is accelerated to a velocity not less than about 1000 m/sec and transported through an MHD generator having a magnetic field in the range of from about 4 to about 6 Tesla to generate dc power. The ionized plasma is deaccelerated and passed from the MHD generator in heat exchange relationship with the methane to heat same for decomposition, and thereafter any cesium or potassium seed material is recovered and transported to the combustor, and the dc power from the MHD generator is converted to ac power.

Carabetta, R.A.; Staats, G.E.; Cutting, J.C.

1992-12-31T23:59:59.000Z

336

Solar Electric Generating System II finite element analysis  

SciTech Connect (OSTI)

On June 2, 1992, Landers` earthquake struck the Solar Electric Generating System II, located in Daggett, California. The 30 megawatt power station, operated by the Daggett Leasing Corporation (DLC), suffered substantial damage due to structural failures in the solar farm. These failures consisted of the separation of sliding joints supporting a distribution of parabolic glass mirrors. At separation, the mirrors fell to the ground and broke. It was the desire of the DLC and the Solar Thermal Design Assistance Center (STDAC) of Sandia National Laboratories (SNL) and to redesign these joints so that, in the event of future quakes, costly breakage will be avoided. To accomplish this task, drawings of collector components were developed by the STDAC, from which a detailed finite element computer model of a solar collector was produced. This nonlinear dynamic model, which consisted of over 8,560 degrees of freedom, underwent model reduction to form a low order nonlinear dynamic model containing only 40 degrees of freedom. This model was then used as a design tool to estimate joint dynamics. Using this design tool, joint configurations were modified, and an acceptable joint redesign determined. The results of this analysis showed that the implementation of metal stops welded to support shafts for the purpose of preventing joint separation is a suitable joint redesign. Moreover, it was found that, for quakes of Landers` magnitude, mirror breakage due to enhanced vibration in the trough assembly is unlikely.

Dohner, J.L.; Anderson, J.R.

1994-04-01T23:59:59.000Z

337

ORNL Superconducting Technology Program for Electric Energy Systems  

SciTech Connect (OSTI)

The Oak Ridge National Laboratory (ORNL) Superconducting Technology Program is conducted as part of a national effort by the US Department of Energy's (DOE's) Office of Conservation and Renewable Energy to develop the technology base needed by US industry for commercial development of electric power applications of high-temperature superconductivity. The two major elements of this program are wire development and systems development. This document describes the major research and development activities for this program together with related accomplishments. The technical progress reported was summarized from information prepared for the FY 1992 Peer Review of Projects, conducted by DOE's Office of Program Analysis, Office of Energy Research. This ORNL program is highly leveraged by the staff and other resources of US industry and universities. Interlaboratory teams are also in place on a number of industry-driven projects. Patent disclosures, working group meetings, staff exchanges, and joint publications and presentations ensure that there is technology transfer to US industry. Working together, the collaborative teams are making tremendous progress in solving the scientific and technical issues necessary for the commercialization of long lengths of practical high-temperature superconductor wire and wire products.

Hawsey, R.A. (comp.)

1993-02-01T23:59:59.000Z

338

Traction Drive System for Electric Vehicles, Using Multilevel Converters Juan W. Dixon, Micah Ortzar and Felipe Ros  

E-Print Network [OSTI]

Traction Drive System for Electric Vehicles, Using Multilevel Converters Juan W. Dixon, Micah converters for electric vehicles using multilevel inverters. They are being compared with inverters using. Introduction Power Electronics technologies contribute with important part in the development of electric

Catholic University of Chile (Universidad Católica de Chile)

339

Dynamics Visual Servo Control System for the Electric Buses Battery Replacement Robot Following the Target  

Science Journals Connector (OSTI)

This paper designs a robotic system based on dynamics visual servo control system for the electric buses battery replacement robot following the target in order to meet the development of the domestic electric car and to adapt to changes in the height ... Keywords: battery replacement robot, following the target, multi-axis motion control technology, dynamics visual servo, PID control

Qi Hui; Tan Lin

2012-04-01T23:59:59.000Z

340

Stirling engines in generating heat and electricity for micro: CHP systems  

Science Journals Connector (OSTI)

In this paper, an analysis of different generating heat and electricity systems with Stirling engine is made from the point of view of benefits and limitations, both operational and economic and environmental. Stirling engine has the ability to work ... Keywords: biomass, fossil fuels, generating heat and electricity system, m-CHP, stirling engine

Dan Scarpete; Krisztina Uzuneanu

2011-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

A Robust Synchronization for 230 MHz Electricity System in the Presence of Narrowband Interference  

Science Journals Connector (OSTI)

In this paper, a robust timing and frequency synchronization method in the presence of narrowband interference is proposed for 230MHz electricity communication system. A narrowband interference detection module and an adaptive filter are applied in the ... Keywords: Synchronization, 230MHz Electricity System, Narrowband interference, OFDM

Hongjian Gao, Jianqi Li, Tao Zhao, Yong Zhao

2014-07-01T23:59:59.000Z

342

Distributed Solar PV for Electricity System Resiliency: Policy and Regulatory Considerations (Brochure)  

SciTech Connect (OSTI)

Distributed Solar PV systems have the potential of increasing the grid's resiliency to unforeseen events, such as extreme weather events and attacks. This paper presents the role that distributed PV can play in electric grid resiliency, introduces basic system design requirements and options, and discusses the regulatory and policy options for supporting the use of distributed PV for the purpose of increased electricity resiliency.

Not Available

2014-11-01T23:59:59.000Z

343

Long-Run Equilibrium Modeling of Emissions Allowance Allocation Systems in Electric Power Markets  

Science Journals Connector (OSTI)

Carbon dioxide allowance trading systems for electricity generators are in place in the European Union and in several U.S. states. An important question in the design of such systems is how allowances are to be initially allocated: by auction, by giving ... Keywords: Equilibrium programming, economics, electricity and emissions markets, model properties and applications

Jinye Zhao; Benjamin F. Hobbs; Jong-Shi Pang

2010-05-01T23:59:59.000Z

344

AN INFINITE DIMENSIONAL DESCRIPTOR SYSTEM MODEL FOR ELECTRICAL CIRCUITS WITH TRANSMISSION LINES  

E-Print Network [OSTI]

AN INFINITE DIMENSIONAL DESCRIPTOR SYSTEM MODEL FOR ELECTRICAL CIRCUITS WITH TRANSMISSION LINES TIMO REIS Abstract. In this paper a model of linear electrical circuits with transmission lines is de-coupled with the telegraph equations who describe the behavior of the transmission lines. The resulting system of equations

Reis, Timo

345

Method and system for managing an electrical output of a turbogenerator  

DOE Patents [OSTI]

The system and method manages an electrical output of a turbogenerator in accordance with multiple modes. In a first mode, a direct current (DC) bus receives power from a turbogenerator output via a rectifier where turbogenerator revolutions per unit time (e.g., revolutions per minute (RPM)) or an electrical output level of a turbogenerator output meet or exceed a minimum threshold. In a second mode, if the turbogenerator revolutions per unit time or electrical output level of a turbogenerator output are less than the minimum threshold, the electric drive motor or a generator mechanically powered by the engine provides electrical energy to the direct current bus.

Stahlhut, Ronnie Dean (Bettendorf, IA); Vuk, Carl Thomas (Denver, IA)

2010-08-24T23:59:59.000Z

346

Strong and Tunable Nonlinear Optomechanical Coupling in a Low-Loss System  

E-Print Network [OSTI]

A major goal in optomechanics is to observe and control quantum behavior in a system consisting of a mechanical resonator coupled to an optical cavity. Work towards this goal has focused on increasing the strength of the coupling between the mechanical and optical degrees of freedom; however, the form of this coupling is crucial in determining which phenomena can be observed in such a system. Here we demonstrate that avoided crossings in the spectrum of an optical cavity containing a flexible dielectric membrane allow us to realize several different forms of the optomechanical coupling. These include cavity detunings that are (to lowest order) linear, quadratic, or quartic in the membrane's displacement, and a cavity finesse that is linear in (or independent of) the membrane's displacement. All these couplings are realized in a single device with extremely low optical loss and can be tuned over a wide range in situ; in particular, we find that the quadratic coupling can be increased three orders of magnitude beyond previous devices. As a result of these advances, the device presented here should be capable of demonstrating the quantization of the membrane's mechanical energy.

Jack C. Sankey; Cheng Yang; Benjamin M. Zwickl; Andrew M. Jayich; Jack G. E. Harris

2010-02-22T23:59:59.000Z

347

Brain-computer interface controlled functional electrical stimulation system for ankle movement.  

E-Print Network [OSTI]

Electrical Stimulation System for Ankle Movement. Journal ofStimulation System for Ankle Movement An H Do 1,2* , Po Tthe anterior surface of each ankle and were used to measure

Do, An H; Wang, Po T; King, Christine E; Abiri, Ahmad; Nenadic, Zoran

2011-01-01T23:59:59.000Z

348

Brain Computer Interface Controlled Functional Electrical Stimulation System for Ankle Movement  

E-Print Network [OSTI]

Electrical Stimulation System for Ankle Movement. Journal ofStimulation System for Ankle Movement An H Do 1,2* , Po Tthe anterior surface of each ankle and were used to measure

Do, An H; Wang, Po T; King, Christine E; Abiri, Ahmad; Nenadic, Zoran

2011-01-01T23:59:59.000Z

349

Brain-Computer Interface Controlled Functional Electrical Stimulation System for Ankle Movement  

E-Print Network [OSTI]

Electrical Stimulation System for Ankle Movement. Journal ofStimulation System for Ankle Movement An H Do 1,2* , Po Tthe anterior surface of each ankle and were used to measure

Do, An H; Wang, Po T; King, Christine E; Abiri, Ahmad; Nenadic, Zoran

2011-01-01T23:59:59.000Z

350

Research on propeller dynamic load simulation system of electric propulsion ship  

Science Journals Connector (OSTI)

A dynamic marine propeller simulation system was developed, which is ... requirement of theory research and engineering design of marine electric propulsion system. By applying an actual ship parameter...J? ? K ...

Hui Huang ? ?; Ai-di Shen ???; Jian-xin Chu ???

2013-04-01T23:59:59.000Z

351

Combined Operation of Solar Energy Source Heat Pump, Low-vale Electricity and Floor Radiant System  

E-Print Network [OSTI]

solar energy, low-vale electricity as heat sources in a floor radiant system are analyzed. This paper presents a new heat pump system and discusses its operational modes in winter....

Liu, G.; Guo, Z.; Hu, S.

2006-01-01T23:59:59.000Z

352

Design and Analysis of a Region-Wide Remotely Controllable Electrical Lock-Out System  

SciTech Connect (OSTI)

Electric utilities have a main responsibility to protect the lives and safety of their workers when they are working on low-, medium-, and high-voltage power lines and distribution circuits. With the anticipated widespread deployment of smart grids, a secure and highly reliable means of maintaining isolation of customer-owned distributed generation (DG) from the affected distribution circuits during maintenance is necessary to provide a fully de-energized work area, ensure utility personnel safety, and prevent hazards that can lead to accidents such as accidental electrocution from unanticipated power sources. Some circuits are serviced while energized (live line work) while others are de-energized for maintenance. For servicing de-energized circuits and equipment, lock-out tag-out (LOTO) programs provide a verifiable procedure for ensuring that circuit breakers are locked in the off state and tagged to indicate that status to operational personnel so that the lines will be checked for voltage to verify they are de-energized. The de-energized area is isolated from any energized sources, which traditionally are the substations. This procedure works well when all power sources and their interconnections are known armed with this knowledge, utility personnel can determine the appropriate circuits to de-energize for isolating the target line or equipment. However, with customer-owned DG tied into the grid, the risk of inadvertently reenergizing a circuit increases because circuit connections may not be adequately documented and are not under the direct control of the local utility. Thus, the active device may not be properly de-energized or isolated from the work area. Further, a remote means of de-energizing and locking out energized devices provides an opportunity for greatly reduced safety risk to utility personnel compared to manual operations. In this paper, we present a remotely controllable LOTO system that allows individual workers to determine the configuration and status of electrical system circuits and permit them to lock out customer-owned DG devices for safety purposes using a highly secure and ultra-reliable radio signal. The system consists of: (1) individual personal lockout devices, (2) lockout communications and logic module at circuit breakers, which are located at all DG devices, and (3) a database and configuration control process located at the utility operations center. The lockout system is a close permissive, i.e., loss of control power or communications will cause the circuit breaker to open. Once the DG device is tripped open, a visual means will provide confirmation of a loss of voltage and current that verifies the disconnected status of the DG. Further the utility personnel will be able to place their own lock electronically on the system to ensure a lockout functionally. The proposed LOTO system provides enhanced worker safety and protection against unintended energized lines when DG is present. The main approaches and challenges encountered through designing the proposed region-wide LOTO system are discussed in this paper. These approaches include: (1) evaluating the reliability of the proposed approach under N-modular redundancy with voter/spares configurations and (2) conducting a system level risk assessment study using the failure modes and effects analysis (FMEA) technique to identify and rank failure modes by probability of occurrence, probability of detection, and severity of consequences. This ranking allows a cost benefits analysis to be conducted such that dollars and efforts will be applied to the failures that provide greatest incremental gains in system capability (resilience, survivability, security, reliability, availability, etc.) per dollar spent whether capital, operations, or investment. Several simulation scenarios and their results are presented to demonstrate the viability of these approaches.

Olama, Mohammed M [ORNL; Allgood, Glenn O [ORNL; Kuruganti, Phani Teja [ORNL; Howlader, Mostofa [ORNL; Kisner, Roger A [ORNL; Ewing, Paul D [ORNL; McIntyre, Timothy J [ORNL

2012-01-01T23:59:59.000Z

353

Electrical instrumentation of a contra-rotating propeller drive system  

E-Print Network [OSTI]

A prototype ship propulsion device based on an electric motor that spins propellers in opposite directions was constructed and tested. The device uses a single motor to spin both propellers without a gearbox. The rotor is ...

Angle, Matthew G. (Matthew Gates)

2011-01-01T23:59:59.000Z

354

Analysis of TPV Network Losses (a Presentation)  

SciTech Connect (OSTI)

This talk focuses on the theoretical analysis of electrical losses associated with electrically networking large numbers of TPV cells to produce high power TPV power generators.

DM DePoy; MW Dashiell; DD Rahner; LR Danielson; JE Oppenlander; JL Vell; RJ Wehrer

2004-12-08T23:59:59.000Z

355

Assessing business models arising from the integration of distributed energy systems in the Chilean electric power system  

E-Print Network [OSTI]

Electric power systems are more than just networks of generation, transmission and distribution assets. They are socio-technical systems, involving regulation, markets and technology availability. Presently, the dynamic ...

Le Dantec, Jorge I. (Jorge Ignacio)

2014-01-01T23:59:59.000Z

356

An examination of the costs and critical characteristics of electric utility distribution system capacity enhancement projects  

SciTech Connect (OSTI)

This report classifies and analyzes the capital and total costs (e.g., income tax, property tax, depreciation, centralized power generation, insurance premiums, and capital financing) associated with 130 electricity distribution system capacity enhancement projects undertaken during 1995-2002 or planned in the 2003-2011 time period by three electric power utilities operating in the Pacific Northwest. The Pacific Northwest National Laboratory (PNNL), in cooperation with participating utilities, has developed a large database of over 3,000 distribution system projects. The database includes brief project descriptions, capital cost estimates, the stated need for each project, and engineering data. The database was augmented by additional technical (e.g., line loss, existing substation capacities, and forecast peak demand for power in the area served by each project), cost (e.g., operations, maintenance, and centralized power generation costs), and financial (e.g., cost of capital, insurance premiums, depreciations, and tax rates) data. Though there are roughly 3,000 projects in the database, the vast majority were not included in this analysis because they either did not clearly enhance capacity or more information was needed, and not available, to adequately conduct the cost analyses. For the 130 projects identified for this analysis, capital cost frequency distributions were constructed, and expressed in terms of dollars per kVA of additional capacity. The capital cost frequency distributions identify how the projects contained within the database are distributed across a broad cost spectrum. Furthermore, the PNNL Energy Cost Analysis Model (ECAM) was used to determine the full costs (e.g., capital, operations and maintenance, property tax, income tax, depreciation, centralized power generation costs, insurance premiums and capital financing) associated with delivering electricity to customers, once again expressed in terms of costs per kVA of additional capacity. The projects were sorted into eight categories (capacitors, load transfer, new feeder, new line, new substation, new transformer, reconductoring, and substation capacity increase) and descriptive statistics (e.g., mean, total cost, number of observations, and standard deviation) were constructed for each project type. Furthermore, statistical analysis has been performed using ordinary least squares regression analysis to identify how various project variables (e.g., project location, the primary customer served by the project, the type of project, the reason for the upgrade, size of the upgrade) impact the unit cost of the project.

Balducci, Patrick J.; Schienbein, Lawrence A.; Nguyen, Tony B.; Brown, Daryl R.; Fathelrahman, Eihab M.

2004-06-01T23:59:59.000Z

357

Electricity Bill Savings from Residential Photovoltaic Systems: Sensitivities to Changes in Future Electricity Market Conditions  

E-Print Network [OSTI]

force” additional pumped hydro storage in the system (i.e. ,6.33 GW of pumped hydro storage into the system, in addition

Darghouth, Naim

2014-01-01T23:59:59.000Z

358

Monte Carlo simulation of the electrical properties of electrolytes adsorbed in charged slit-systems  

E-Print Network [OSTI]

We study the adsorption of primitive model electrolytes into a layered slit system using grand canonical Monte Carlo simulations. The slit system contains a series of charged membranes. The ions are forbidden from the membranes, while they are allowed to be adsorbed into the slits between the membranes. We focus on the electrical properties of the slit system. We show concentration, charge, electric field, and electrical potential profiles. We show that the potential difference between the slit system and the bulk phase is mainly due to the double layers formed at the boundaries of the slit system, but polarization of external slits also contributes to the potential drop. We demonstrate that the electrical work necessary to bring an ion into the slit system can be studied only if we simulate the slit together with the bulk phases in one single simulation cell.

R. Kovács; M. Valiskó; D. Boda

2012-07-13T23:59:59.000Z

359

A Bio-Inspired Multi-Agent System Framework for Real-Time Load Management in All-Electric Ship Power Systems  

E-Print Network [OSTI]

All-electric ship power systems have limited generation capacity and finite rotating inertia compared with large power systems. Moreover, all-electric ship power systems include large portions of nonlinear loads and dynamic loads relative...

Feng, Xianyong

2012-07-16T23:59:59.000Z

360

ELECTRICAL, COMPUTER, AND SYSTEMS ENGINEERING DEPARTMENT ABET COURSE SYLLABUS  

E-Print Network [OSTI]

electric circuits, and measurements of their properties. Topics include resistive and energy-storage and analysis, frequency response, and Laplace transform and computer-aided methods. Pre-Requisite Courses: MATH of their properties. Topics include resistive and energy-storage elements, controlled sources and operational

Zhang, Tong

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Simulation of an electrical network and control system in SysML  

Science Journals Connector (OSTI)

Modeling of the electrical grid is normally done using bespoke or custom tools and programs rather than generic modeling languages. This requires the engineer to develop the complete simulation system from scratch. In addition, it is difficult to model ... Keywords: MBSE, SysML, electrical network, executable models, interfaces, simulation

Matthew Hause; James Hummell

2012-03-01T23:59:59.000Z

362

Behavioral/Systems/Cognitive Distinct Electrical and Chemical Connectivity Maps in the  

E-Print Network [OSTI]

Behavioral/Systems/Cognitive Distinct Electrical and Chemical Connectivity Maps in the Thalamic the network during normal sleep and in absence epilepsy, but the chemical versus electrical nature (horizontal) plane, chemical connectivity had higher incidence (60% of recorded neurons vs 40% in vertical

Huguenard, John R.

363

Power factor correction of an electrical drive system based on multiphase machines  

E-Print Network [OSTI]

Power factor correction of an electrical drive system based on multiphase machines Khoudir MAROUANI_tabache@yahoo.com Abstract--This paper deals with the energy efficiency improvement of an electrical drive which can be used both in wind energy conversion or motor drive applications. A power factor (PF) control scheme

Paris-Sud XI, Université de

364

The Torque Vector Control System of the Switched Reluctance Motor Used in Electric Vehicle  

Science Journals Connector (OSTI)

In the paper, the micro-step method based on the phase current aiming to reduce the torque ripple is proposed. The SRM driving system used in the electric vehicle is presented by TMS320LF2407 as main controller. The hardware circuit and the software ... Keywords: SRM, micro-step, DSP controller, the electric vehicle

Li Jisheng; Gu Ye; Lei Shuying

2010-06-01T23:59:59.000Z

365

Wind and Solar-Electric (PV) Systems Exemption | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

You are here You are here Home » Wind and Solar-Electric (PV) Systems Exemption Wind and Solar-Electric (PV) Systems Exemption < Back Eligibility Commercial Industrial Residential Savings Category Solar Buying & Making Electricity Wind Maximum Rebate None Program Info State Minnesota Program Type Property Tax Incentive Rebate Amount Solar: 100% exemption from real property taxes Wind: 100% exemption from real and personal property taxes Provider Minnesota Department of Commerce Minnesota excludes the value added by solar-electric (PV) systems installed after January 1, 1992 from real property taxation. In addition all real and personal property of wind-energy systems is exempt from the state's property tax.* However, the land on which a PV or wind system is located remains taxable.

366

Superconductivity for Electric Systems Annual Peer Review Arlington, VA July 25-27, 2006Superconductivity for Electric Systems Annual Peer Review Arlington, VA July 25-27, 2006 Understanding and Pushing the Limits  

E-Print Network [OSTI]

Superconductivity for Electric Systems Annual Peer Review Arlington, VA July 25-27, 2006Superconductivity for Electric Systems Annual Peer Review Arlington, VA July 25-27, 2006 Understanding and Pushing pinning " #12;Superconductivity for Electric Systems Annual Peer Review Arlington, VA July 25-27, 2006

367

Electromagnetic pulse research on electric power systems: Program summary and recommendations. Power Systems Technology Program  

SciTech Connect (OSTI)

A single nuclear detonation several hundred kilometers above the central United States will subject much of the nation to a high-altitude electromagnetic pulse (BENT). This pulse consists of an intense steep-front, short-duration transient electromagnetic field, followed by a geomagnetic disturbance with tens of seconds duration. This latter environment is referred to as the magnetohydrodynamic electromagnetic pulse (NMENT). Both the early-time transient and the geomagnetic disturbance could impact the operation of the nation`s power systems. Since 1983, the US Department of Energy has been actively pursuing a research program to assess the potential impacts of one or more BENT events on the nation`s electric energy supply. This report summarizes the results of that program and provides recommendations for enhancing power system reliability under HENT conditions. A nominal HENP environment suitable for assessing geographically large systems was developed during the program and is briefly described in this report. This environment was used to provide a realistic indication of BEMP impacts on electric power systems. It was found that a single high-altitude burst, which could significantly disturb the geomagnetic field, may cause the interconnected power network to break up into utility islands with massive power failures in some areas. However, permanent damage would be isolated, and restoration should be possible within a few hours. Multiple bursts would likely increase the blackout areas, component failures, and restoration time. However, a long-term blackout of many months is unlikely because major power system components, such as transformers, are not likely to be damaged by the nominal HEND environment. Moreover, power system reliability, under both HENT and normal operating conditions, can be enhanced by simple, and often low cost, modifications to current utility practices.

Barnes, P.R.; McConnell, B.W.; Van Dyke, J.W. [Oak Ridge National Lab., TN (United States); Tesche, F.M. [Tesche (F.M.), Dallas, TX (United States); Vance, E.F. [Vance (E.F.), Fort Worth, TX (United States)

1993-01-01T23:59:59.000Z

368

Electricity Reliability  

E-Print Network [OSTI]

Electricity Delivery and Energy Reliability High Temperature Superconductivity (HTS) Visualization in the future because they have virtually no resistance to electric current, offering the possibility of new electric power equipment with more energy efficiency and higher capacity than today's systems

369

Transient Loss Performance of a Class of Finite Buffer Queueing Systems GuangLiang LI \\Lambda FangMing LI Bo LI  

E-Print Network [OSTI]

Transient Loss Performance of a Class of Finite Buffer Queueing Systems Guang­Liang LI \\Lambda Fang systems usually focuses on Markov models. This paper, in con­ trast, presents an analysis of transient on the arrival process will affect transient loss behavior of the queueing system. We also discuss how

Cui, Jun-Hong

370

Electricity Bill Savings from Residential Photovoltaic Systems: Sensitivities to Changes in Future Electricity Market Conditions  

E-Print Network [OSTI]

demand response scenario—includes a simulated system- wide price elasticityPrice Elasticity ($/ton) Notes: C = carbon; NG = natural gas; RE = renewable energy; DR = demand response.

Darghouth, Naim

2014-01-01T23:59:59.000Z

371

Development Of Control Oriented Electrical And Thermal Models Of An Electric Transit Bus Battery System.  

E-Print Network [OSTI]

??This thesis presents the insights derived from the empirical characterization, modeling, simulation, control-design, and verification tasks performed in developing energy storage system (ESS) controls for… (more)

Kunte, Harshad

2014-01-01T23:59:59.000Z

372

Mechanical Strength, Swelling and Weight Loss of Inorganic Fusion Magnet Insulation Systems Following Reactor Irradiation  

Science Journals Connector (OSTI)

Superconducting fusion magnets require a high electrical and mechanical ... were irradiated at ambient temperature in the TRIGA reactor (Vienna, Austria) up to neutron fluences...21, 1022 and 5x1022 m?2...(E>0.1 ...

K. Humer; P. Rosenkranz; H. W. Weber…

2000-01-01T23:59:59.000Z

373

Nature of electrical contacts in a metalmoleculesemiconductor system J. W. P. Hsu,a)  

E-Print Network [OSTI]

and molecules is needed. Since electrical measurements on molecular systems are two point rather than four point. For a different molecule and using lift-off float-on metal contacts,3 Vilan and Cahen found qualitative

Rogers, John A.

374

Method of calculating the cost of water and electrical power for nuclear desalination system  

Science Journals Connector (OSTI)

A method of determining the economic factors of double-purpose systems is set out; this provides separate and fairly strict determinations of the expenses involved in the production of electrical power and fre...

Yu. I. Koryakin; A. A. Loginov; V. A. Chernyaev; I. I. Zakharov

1965-08-01T23:59:59.000Z

375

Sustainability in the Electricity Production and Consumption System – A Consumers’ Perspective  

Science Journals Connector (OSTI)

The production and consumption systems (PACS) of electricity provide broad insights into possible actions and ... the life cycle from production and supply to consumption. More importantly for the context of the ...

Doris Fuchs; Sylvia Lorek

2010-01-01T23:59:59.000Z

376

Novel Latent Heat Storage Devices for Thermal Management of Electric Vehicle Battery Systems  

Science Journals Connector (OSTI)

A major aspect for safe and efficient operation of battery electric vehicles (BEV) is the thermal management of their battery systems. As temperature uniformity and level highly ... performance and the lifetime, ...

Ch. Huber; A. Jossen; R. Kuhn

2014-01-01T23:59:59.000Z

377

The Changing Electricity System in Belgium/Europe and Related Research  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The Changing Electricity System in Belgium/Europe and Related Research The Changing Electricity System in Belgium/Europe and Related Research Speaker(s): Johan Driesen Date: April 30, 2002 - 12:00pm Location: Bldg. 90 In the first part of the seminar, the changes in the electricity system in Europe in general and Belgium in particular are highlighted. These changes are partly technology-driven and partly imposed by the on-going deregulation according the EU guidelines. This has brought about many initiatives to introduce renewable energies and power-efficient systems, but also political problems and a heavy congestion problem. A short overview will be given, thereby indicating the differences with the US.The second part will discuss some recent and on-going research projects of the electrical energy research group and the Energy Institute of the

378

EA-1247: Electrical Power System Upgrades at Los Alamos National Laboratory, Los Alamos, New Mexico  

Broader source: Energy.gov [DOE]

This EA evaluates the environmental impacts for the proposal to upgrade the electrical power supply system for the U.S. Department of Energy Los Alamos National Laboratory to increase the...

379

RPSEA Phase 2 Final Report: MSDC Electrical System for Deepwater Subsea Process  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

RPSEA RPSEA Phase 2 Final Report: MSDC Electrical System for Deepwater Subsea Process 08121.2901.01.FINAL Deep Water Electrical Power Distribution System and Power Components 08121-2901-01 November 19, 2013 Rixin Lai Senior Electrical Engineer General Electric Global Research One Research Circle, Niskayuna, NY 12309 LEGAL NOTICE This report was prepared by General Electric Global Research as an account of work sponsored by the Research Partnership to Secure Energy for America, RPSEA. Neither RPSEA members of RPSEA, the National Energy Technology Laboratory, the U.S. Department of Energy, nor any person acting on behalf of any of the entities: MAKES ANY WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED WITH RESPECT TO ACCURACY, COMPLETENESS, OR USEFULNESS OF THE INFORMATION

380

Nuclear-Renewable Hybrid System Economic Basis for Electricity, Fuel, and Hydrogen  

SciTech Connect (OSTI)

Concerns about climate change and altering the ocean chemistry are likely to limit the use of fossil fuels. That implies a transition to a low-carbon nuclear-renewable electricity grid. Historically variable electricity demand was met using fossil plants with low capital costs, high operating costs, and substantial greenhouse gas emissions. However, the most easily scalable very-low-emissions generating options, nuclear and non-dispatchable renewables (solar and wind), are capital-intensive technologies with low operating costs that should operate at full capacities to minimize costs. No combination of fully-utilized nuclear and renewables can meet the variable electricity demand. This implies large quantities of expensive excess generating capacity much of the time. In a free market this results in near-zero electricity prices at times of high nuclear renewables output and low electricity demand with electricity revenue collapse. Capital deployment efficiency—the economic benefit derived from energy systems capital investment at a societal level—strongly favors high utilization of these capital-intensive systems, especially if low-carbon nuclear renewables are to replace fossil fuels. Hybrid energy systems are one option for better utilization of these systems that consumes excess energy at times of low prices to make some useful product.The economic basis for development of hybrid energy systems is described for a low-carbon nuclear renewable world where much of the time there are massivequantities of excess energy available from the electric sector.Examples include (1) high-temperature electrolysis to generate hydrogen for non-fossil liquid fuels, direct use as a transport fuel, metal reduction, etc. and (2) biorefineries.Nuclear energy with its concentrated constant heat output may become the enabling technology for economically-viable low-carbon electricity grids because hybrid nuclear systems may provide an economic way to produce dispatachable variable electricity with economic base-load operation of the reactor.

Charles Forsberg; Steven Aumeier

2014-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Small Wind Electric Systems: A Guide Produced for the American Corn Growers Foundation  

SciTech Connect (OSTI)

The purpose of the Small Wind Electric Systems Consumer's Guide produced for the AGCF is to provide members of the foundation with enough information to help them determine if a small wind electric system will work for them based on their wind resource, the type and size of their sites, and their economics. The cover of this guide contains the results of the 2003 National Corn Producer Survey Wind Energy Issues.

Not Available

2003-06-01T23:59:59.000Z

382

Radioisotope electric propulsion of sciencecraft to the outer solar system and near-interstellar space  

SciTech Connect (OSTI)

Recent results are presented in the study of radioisotope electric propulsion as a near-term technology for sending small robotic sciencecraft to the outer Solar System and near-interstellar space. Radioisotope electric propulsion (REP) systems are low-thrust, ion propulsion units based on radioisotope electric generators and ion thrusters. Powerplant specific masses are expected to be in the range of 100 to 200 kg/kW of thrust power. Planetary rendezvous missions to Pluto, fast missions to the heliopause (100 AU) with the capability to decelerate an orbiter for an extended science program and prestellar missions to the first gravitational lens focus of the Sun (550 AU) are investigated.

Noble, R.J.

1998-08-01T23:59:59.000Z

383

The Electricity Transmission System Opportunities to Overcome Key Challenges  

Broader source: Energy.gov (indexed) [DOE]

Opportunities to Overcome Key Challenges Opportunities to Overcome Key Challenges Summary Results of Breakout Group Discussions Electricity Transmission Workshop Double Tree Crystal City, Arlington, Virginia November 2, 2012 Breakout Group Discussion Overview Opportunities to Overcome Key Challenges Each of the four breakout groups prioritized the critical issues facing the grid from the list of synthesized challenges identified in the first breakout session of the workshop. Focusing on these top priorities, each group proposed specific R&D activities and initiatives that DOE can pursue to overcome these challenges and address existing gaps. Summary of Synthesized Challenges A. Need improved understanding of the availability, utility, maintenance, exchange, and security of data and associated requirements.

384

Design Science in Practice: Designing an Electricity Demand Response System  

Science Journals Connector (OSTI)

Information Systems play an important role in achieving sustainable solutions for the global economy. In particular, Information Systems are inevitable when it comes to the transition from the “current” to the “s...

Philipp Bodenbenner; Stefan Feuerriegel…

2013-01-01T23:59:59.000Z

385

Small Wind Electric Systems: A Guide for the American Corn Growers Association  

Wind Powering America (EERE)

Guide Produced for the Guide Produced for the American Corn Growers Foundation Small Wind Electric Systems Small Wind Electric Systems U.S. Department of Energy Energy Efficiency and Renewable Energy Wind and Hydropower Technologies Program Small Wind Electric Systems Cover photo: This AOC 15/50 wind turbine on a farm in Clarion, Iowa, saves the Clarion-Goldfield Community School about $9,000 per year on electrical purchase and provides a part of the school's science curriculum. Photo credit - Robert Olson/PIX11649 A national survey of corn producers conducted by the American Corn Growers Foundation (ACGF) found a strong majority level of support among farmers on a range of important wind energy issues. The survey, conducted by Robinson and Muenster Associates, Inc. of Sioux Falls, South Dakota during

386

LOSS OF ROTOR ISOTROPY AS A BLADE DAMAGE INDICATOR FOR WIND TURBINE STRUCTURE HEALTH MONITORING SYSTEMS  

E-Print Network [OSTI]

LOSS OF ROTOR ISOTROPY AS A BLADE DAMAGE INDICATOR FOR WIND TURBINE STRUCTURE HEALTH MONITORING to simulated vibrations of a rotating rotor. KEYWORDS : wind turbine blade, rotor anisotropy, Floquet analysis, OMA INTRODUCTION Blades of modern wind turbines are complex high-tech structures, and their cost

Paris-Sud XI, Université de

387

Critical coupling and coherent perfect absorption for ranges of energies due to a complex gain and loss symmetric system  

E-Print Network [OSTI]

We consider a non-Hermitian medium with a gain and loss symmetric, exponentially damped potential distribution to demonstrate different scattering features analytically. The condition for critical coupling (CC) for unidirectional wave and coherent perfect absorption (CPA) for bidirectional waves are obtained analytically for this system. The energy points at which total absorption occurs are shown to be the spectral singular points for the time reversed system. The possible energies at which CC occurs for left and right incidence are different. We further obtain periodic intervals with increasing periodicity of energy for CC and CPA to occur in this system.

Mohammad Hasan; Ananya Ghatak; Bhabani Prasad Mandal

2014-03-03T23:59:59.000Z

388

Identification of Severe Multiple Contingencies in Electric PowerSystems  

SciTech Connect (OSTI)

In this work, we propose a computationally feasible approachtodetect severe multiple contingencies. We pose a contingency analysisproblem using a nonlinear optimization framework, which enables ustodetect the fewest possible transmission line outages resulting ina systemfailure of specified severity, and the most severe system failure causedby removing a specified number of transmission lines from service.Illustrations using a three bus system and the IEEE ~;30 bus system aimto exhibit the effectiveness of the proposed approach.

Donde, Vaibhav; Lopez, Vanessa; Lesieutre, Bernard; Pinar, Ali; Yang, Chao; Meza, Juan

2006-06-14T23:59:59.000Z

389

Conductor sizes and overcurrent device ratings are critical to the safe, long-term operation of any electrical system, but  

E-Print Network [OSTI]

of this procedure is in Section 690.8(B) of the 2011 National Electrical Code. Historically, most residential and light-commercial electrical wiring has involved indoor wiring at room temperatures--30°C (86°F) or less of any electrical system, but are particularly important in PV systems where the outdoor environment can

Johnson, Eric E.

390

Self Excited Vibration in a Specialised Electric Propulsion System  

Science Journals Connector (OSTI)

Special marine propulsion applications demand efficient manoeuvrability under extreme conditions. ... , vibration resonance and radiated noise from the propulsion shafting system must be kept to a ... purpose ves...

Don Chool Lee; Ronald D. Barro

2014-09-01T23:59:59.000Z

391

Flathead Electric Cooperative Facility Geothermal Heat Pump System...  

Broader source: Energy.gov (indexed) [DOE]

Cooperative is uniquely positioned to provide marketing of ground source heat pump systems * 15' Static Water Level * Low Pumping Power * Reduced Installation Costs * Good...

392

Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade  

Broader source: Energy.gov [DOE]

Project Will Take Advantage of Abundant Water in Shallow Aquifer. Demonstrate Low Temperature GSHP System Design. Provides a Baseline for Local Industrial Geothermal Project Costs and Benefits.

393

Designing shipboard electrical distribution systems for optimal reliability.  

E-Print Network [OSTI]

??Analysis was performed to quantify and compare the reliability of several different notional shipboard DC distribution system topologies in serving their equipment loads. Further, the… (more)

Stevens, McKay Benjamin

2013-01-01T23:59:59.000Z

394

Electrically heated particulate filter preparation methods and systems  

DOE Patents [OSTI]

A control system that controls regeneration of a particulate filter is provided. The system generally includes a fuel control module that controls injection of fuel into exhaust that passes through the particulate filter. A regeneration module controls current to the particulate filter to initiate regeneration after the fuel has been injected into the exhaust.

Gonze, Eugene V [Pinckney, MI

2012-01-31T23:59:59.000Z

395

Reliability assessment of electrical power systems using genetic algorithms  

E-Print Network [OSTI]

of the dissertation, a GA based method for state sampling of composite generation-transmission power systems is introduced. Binary encoded GA is used as a state sampling tool for the composite power system network states. A linearized optimization load flow model...

Samaan, Nader Amin Aziz

2004-11-15T23:59:59.000Z

396

Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade  

SciTech Connect (OSTI)

High initial cost and lack of public awareness of ground source heat pump (GSHP) technology are the two major barriers preventing rapid deployment of this energy saving technology in the United States. Under the American Recovery and Reinvestment Act (ARRA), 26 GSHP projects have been competitively selected and carried out to demonstrate the benefits of GSHP systems and innovative technologies for cost reduction and/or performance improvement. This paper highlights findings of a case study of one of the ARRA-funded GSHP demonstration projects, which is a heating only central GSHP system using shallow aquifer as heat source and installed at a warehouse and truck bay at Kalispell, MT. This case study is based on the analysis of measured performance data, utility bills, and calculations of energy consumptions of conventional central heating systems for providing the same heat outputs as the central GSHP system did. The evaluated performance metrics include energy efficiency of the heat pump equipment and the overall GSHP system, pumping performance, energy savings, carbon emission reductions, and cost-effectiveness of GSHP system compared with conventional heating systems. This case study also identified areas for reducing uncertainties in performance evaluation, improving operational efficiency, and reducing installed cost of similar GSHP systems in the future. Publication of ASHRAE at the annual conference in Seattle.

Liu, Xiaobing [Oak Ridge National Lab] [Oak Ridge National Lab

2014-06-01T23:59:59.000Z

397

Power electronics in electric utilities: HVDC power transmission systems  

SciTech Connect (OSTI)

High Voltage Direct Current (HVDC) power transmission systems constitute an important application of power electronics technology. This paper reviews salient aspects of this growing industry. The paper summarizes the history of HVDC transmission and discusses the economic and technical reasons responsible for development of HVDC systems. The paper also describes terminal design and basic configurations of HVDC systems, as well as major equipments of HVDC transmission system. In this regard, the state-of-the-art technology in the equipments constructions are discussed. Finally, the paper reviews future developments in the HVDC transmission systems, including promising technologies, such as multiterminal configurations, Gate Turn-Off (GTO) devices, forced commutation converters, and new advances in control electronics.

Nozari, F.; Patel, H.S.

1988-04-01T23:59:59.000Z

398

Hardware model of a shipboard zonal electrical distribution system (ZEDS) : alternating current/direct current (AC/DC)  

E-Print Network [OSTI]

A hardware model of a shipboard electrical distribution system based on aspects of the DDG 51 Flight IIA, Arleigh Burke class, 60Hz Alternating Current (AC) and the future direct current (DC), zonal electrical distribution ...

Tidd, Chad N. (Chad Norman)

2010-01-01T23:59:59.000Z

399

Automated system for permeability and electrical conductivity of low-permeability reservoir rock  

SciTech Connect (OSTI)

An automated laboratory control and measurement system for liquid permeability and electrical conductivity of low permeability reservoir rock as a function of confining pressure has been constructed and tested. The system is controlled by a desktop computer with digital I/0, ADC and IEEE-488 interfaces. Computer programs and flow charts are presented for the automated system and for application of portions of the system to other laboratory experiments.

Jennings, J.B.; Raible, C.J.; Carroll, H.B. Jr.

1982-07-01T23:59:59.000Z

400

NOBEL – A Neighborhood Oriented Brokerage ELectricity and Monitoring System  

Science Journals Connector (OSTI)

Distributed generation of energy coming from various vendors, even private homes, is a big challenge for tomorrows power management systems that, ... and optimized in a distributed manner using local data. Even t...

Antonio Marqués; Manuel Serrano…

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Optimization of Solar Pump System Without Electrical Storage  

Science Journals Connector (OSTI)

The purpose of this work is to develop a simple pumping system which needs no maintenance, optimizes the conversion efficiency of the peak panel output with respect to the amount of water pumped daily, taking int...

U. Cirri; M. M. Maltagliati

1981-01-01T23:59:59.000Z

402

Identification of Severe Multiple Contingencies in Electric Power Systems  

E-Print Network [OSTI]

to the distributed slack bus mechanism, the generators haveis distributed in a uniform manner among the generators. InDistributed Slack Suppose that the system has m g PV (generator)

Donde, Vaibhav; Lopez, Vanessa; Lesieutre, Bernard; Pinar, Ali; Yang, Chao; Meza, Juan

2008-01-01T23:59:59.000Z

403

Identification of Severe Multiple Contingencies in Electric Power Systems  

E-Print Network [OSTI]

to the distributed slack bus mechanism, the generators haveis distributed in a uniform manner among the generators. InDistributed Slack Suppose that the system has m g PV (generator)

Donde, Vaibhav

2010-01-01T23:59:59.000Z

404

Automotive high-voltage electrical system with integrated safeguard  

Science Journals Connector (OSTI)

For several years the use of higher system voltages has been a topic in the automotive industry. Whether for hybrid or conventional vehicles, safeguards are required which protect both the vehicle...

Thomas Flottmann

2007-03-01T23:59:59.000Z

405

Electrical Engineering Group Digital, analog, power, ASIC, FPGA, and embedded systems design  

E-Print Network [OSTI]

Systems · Low power, low voltage, low noise DC/DC conversion · Point of load converters · High voltageElectrical Engineering Group Digital, analog, power, ASIC, FPGA, and embedded systems design engineering, project management, and other engineering disciplines to ensure that the desired scientific data

Mojzsis, Stephen J.

406

US Recovery Act Smart Grid Projects - Electric Distributions Systems | Open  

Open Energy Info (EERE)

Distributions Systems Distributions Systems Jump to: navigation, search CSV Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":500,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026 further results","default":"","geoservice":"google","zoom":false,"width":"600px","height":"350px","centre":false,"layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","icon":"","visitedicon":"","forceshow":true,"showtitle":true,"hidenamespace":false,"template":false,"title":"","label":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"locations":[{"text":"

407

United States Industrial Electric Motor Systems Market Opportunities Assessment  

Broader source: Energy.gov [DOE]

The objectives of the Market Assessment were to: Develop a detailed profile of the stock of motor-driven equipment in U.S. industrial facilities; Characterize and estimate the magnitude of opportunities to improve the energy efficiency of industrial motor systems; Develop a profile of motor system purchase and maintenance practices; Develop and implement a procedure to update the detailed motor profile on a regular basis using readily available market information; and, Develop methods to estimate the energy savings and market effects attributable to the Motor Challenge Program.

408

Study on Electric Control System for a Full Hybrid Bus  

Science Journals Connector (OSTI)

For efficient and reliable operation of a novel hybrid powertrain assembled in the bus, a set of control strategy combined with the structural characteristics was researched. Based on the identification of the driver's intension, this paper presented ... Keywords: full hybrid bus, eletric control system, stretegy, fuel economy

Zhiguo Kong; Hongxiu Wang

2013-07-01T23:59:59.000Z

409

"Working to upgrade electrical generation and delivery systems."  

E-Print Network [OSTI]

for organic solar cells. Our studies focus on determination of the physical mechanisms that limit, we have established a solar cell program. We work with chemists, who synthesize new materials-bandwidth products to accommodate the ever-increasing bit rates of fiber-optics systems. Recently, imaging

Acton, Scott

410

Solar repowering system for Texas Electric Service Company Permian Basin Steam Electric Station Unit No. 5. Final report, executive summary  

SciTech Connect (OSTI)

The conceptual design and economic assessment of a sodium-cooled, solar central receiver repowering system for Texas Electric Service Company's Permian Basin Steam Electric Plant Unit No. 5 are described. As expected, the economic assessment of the specific concept for that site indicates that the cost of energy is greater than that resulting from the burning of natural gas alone in the existing plant (principally as a result of the current cost of heliostats and the scheduled retirement date of Unit No. 5), Favorable economics for similar types of plants can be projected for the future. The annual fuel savings are equivalent to 218,500 barrels of crude oil, with a total dollar value of $21.5 M and $93.6 M for a 7-year life and a 25-year life, respectively. However, it has also been found, from separate studies, that favorable interpretations of the Fuel Use Act and an improved regulatory climate will be necessary for this economic viability to be reached. In particular, a subsidized program to reduce the cost of heliostats to less than $100/m/sup 2/ will be needed. All sodium components, except the receiver, are available on the basis of similar-sized or larger components that have been designed, fabricated, tested and operated in power plants for hundred of thousands of hours. Liquid sodium has been demonstrated for use as a stable, safe, and easily contained heat transfer fluid up to temperature exceeding those required for modern steam plants. (WHK)

Not Available

1980-07-15T23:59:59.000Z

411

STATEMENT OF CONSIDERATIONS 'REQUEST BY GENERAL ELECTRIC POWER SYSTEMS, FOR AN ADVANCE WAIVER  

Broader source: Energy.gov (indexed) [DOE]

'REQUEST BY GENERAL ELECTRIC POWER SYSTEMS, FOR AN ADVANCE WAIVER 'REQUEST BY GENERAL ELECTRIC POWER SYSTEMS, FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN INVENTION RIGHTS UNDER DOE. COOPERATIVE AGREEMENT NO. DE-FC26-03NT41448; W(A)-03-043, CH1164 The Petit;oner, General Electric Power Systems (GEPS), was awarded this cooperative agreement for the performance of work entitled, "Enabling and Information Technology to Increase RAM for Advanced Power Plants" The purpose of the cooperative agreement is to develop, validate and accelerate the commercial use of enabling technologies for coal/Integratec Gasification Combined Cycle (IGCC) powerplant condition assessment and condition based maintenance. The purpose of condition assessment is the real-time, automatic extraction of useful information from operating

412

High-frequency equivalent model of AC motor for electric vehicle drive system  

Science Journals Connector (OSTI)

The application of the motor drive system in electric and hybrid-electric vehicles can lead to a significant increase in electromagnetic compatibility. The AC motor as an important part of motor drive system must be considered. In this paper, a high frequency modelling method of the AC motor is presented. The modelling method consists of deriving the motor model parameters from mathematical resolution of the electrical circuit equations and observation of the variations of the motor impedance with the frequency. All parameters of the proposed models are obtained by differential mode (DM) and common mode (CM) impedance measurement in the frequency domain. The model is verified by impedance measurement of a synchronous motor. The method proposed can be used to obtain a high-frequency equivalent circuit of an AC motor and predict conducted electromagnetic interference in a motor drive system.

Yongming Yang; Hemeng Peng; Quandi Wang

2013-01-01T23:59:59.000Z

413

Fuzzy logic electric vehicle regenerative antiskid braking and traction control system  

DOE Patents [OSTI]

An regenerative antiskid braking and traction control system using fuzzy logic for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensor and determining if regenerative antiskid braking control, requiring hydraulic braking control, and requiring traction control are required. The processor then employs fuzzy logic based on the determined vehicle state and provides command signals to a motor controller to control operation of the electric traction motor and to the brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative braking control, hydraulic braking control, and traction control.

Cikanek, Susan R. (Wixom, MI)

1994-01-01T23:59:59.000Z

414

System and method of modulating electrical signals using photoconductive wide bandgap semiconductors as variable resistors  

DOE Patents [OSTI]

A system and method for producing modulated electrical signals. The system uses a variable resistor having a photoconductive wide bandgap semiconductor material construction whose conduction response to changes in amplitude of incident radiation is substantially linear throughout a non-saturation region to enable operation in non-avalanche mode. The system also includes a modulated radiation source, such as a modulated laser, for producing amplitude-modulated radiation with which to direct upon the variable resistor and modulate its conduction response. A voltage source and an output port, are both operably connected to the variable resistor so that an electrical signal may be produced at the output port by way of the variable resistor, either generated by activation of the variable resistor or propagating through the variable resistor. In this manner, the electrical signal is modulated by the variable resistor so as to have a waveform substantially similar to the amplitude-modulated radiation.

Harris, John Richardson; Caporaso, George J; Sampayan, Stephen E

2013-10-22T23:59:59.000Z

415

Smart Structures and Systems, Vol. 7, No. 6 (2011) 000-000 1 Biological smart sensing strategies in weakly electric fish  

E-Print Network [OSTI]

-sensing systems in engineering applications. Weakly electric fish, which use self-generated electrical energy weakly electric fish generate electric fields using a specialized electric organ located in the tail-type electric fish generate EODs with little or no gap between successive discharges, resulting in a quasi

Nelson, Mark E.

416

Guidelines for reporting parabolic trough solar electric system performance  

SciTech Connect (OSTI)

The purpose of this activity is to develop a generic methodology which can be used to track and compare the performance of parabolic trough power plants. The approach needs to be general enough to work for all existing and future parabolic trough plant designs, provide meaningful comparisons of year to year performance, and allow for comparisons between dissimilar plant designs. The approach presented here uses the net annual system efficiency as the primary metric for evaluating the performance of parabolic trough power plants. However, given the complex nature of large parabolic trough plants, the net annual system efficiency by itself does not adequately characterize the performance of the plant. The approach taken here is to define a number of additional performance metrics which enable a more comprehensive understanding of overall plant performance.

Price, H.W.

1997-06-01T23:59:59.000Z

417

Cryogenics Vision Workshop for High-Temperature Superconducting Electric Power Systems Proceedings  

SciTech Connect (OSTI)

The US Department of Energy's Superconductivity Program for Electric Systems sponsored the Cryogenics Vision Workshop, which was held on July 27, 1999 in Washington, D.C. This workshop was held in conjunction with the Program's Annual Peer Review meeting. Of the 175 people attending the peer review meeting, 31 were selected in advance to participate in the Cryogenics Vision Workshops discussions. The participants represented cryogenic equipment manufactures, industrial gas manufacturers and distributors, component suppliers, electric power equipment manufacturers (Superconductivity Partnership Initiative participants), electric utilities, federal agencies, national laboratories, and consulting firms. Critical factors were discussed that need to be considered in describing the successful future commercialization of cryogenic systems. Such systems will enable the widespread deployment of high-temperature superconducting (HTS) electric power equipment. Potential research, development, and demonstration (RD and D) activities and partnership opportunities for advancing suitable cryogenic systems were also discussed. The workshop agenda can be found in the following section of this report. Facilitated sessions were held to discuss the following specific focus topics: identifying Critical Factors that need to be included in a Cryogenics Vision for HTS Electric Power Systems (From the HTS equipment end-user perspective) identifying R and D Needs and Partnership Roles (From the cryogenic industry perspective) The findings of the facilitated Cryogenics Vision Workshop were then presented in a plenary session of the Annual Peer Review Meeting. Approximately 120 attendees participated in the afternoon plenary session. This large group heard summary reports from the workshop session leaders and then held a wrap-up session to discuss the findings, cross-cutting themes, and next steps. These summary reports are presented in this document. The ideas and suggestions raised during the Workshop will be used by the DOE Superconductivity Program for Electric Systems in preparing subsequent planning and strategy documents such as a Cryogenic Technology Development Roadmap.

Energetics, Inc.

2000-01-01T23:59:59.000Z

418

Research on Methane-Electricity-Heatpump System Model in Cold Area  

Science Journals Connector (OSTI)

The heat energy loss of methane liquid is the most important reason for low temperature of methane biochemical reaction in cold area by energy-flow analysis. The heat energy recovery of methane liquid can build a self-energizing system. Vegetable greenhouses ... Keywords: cold area, self-energizing, methane, heat pump, model

Zhang Chenghu; Pan Yawen; Ma Fang; Sun Dexing; Qiu Shan

2011-01-01T23:59:59.000Z

419

Planning the reconstruction of the electric power system in the Republic of Georgia  

SciTech Connect (OSTI)

The Government of the Republic of Georgia and the United States Agency for International Development (USAID) agreed, in January 1998, to carry out a study to identify and prioritize technical and financial requirements for the rehabilitation and development of Georgia`s electric power sector. The primary objective of the study was to assist the Georgian Government to define an appropriate capital investment plan for the sector through the year 2010. A secondary objective of the study was to transfer technology to power system planning to Georgian professionals engaged in the business of electricity supply. Burns and Roe together with a team of Georgian and US experts were charged with determining the least-cost options for meeting the electricity demand during the study period. The study took into account strategic needs for energy independence and environmental compliance, along with the need to reestablish reliable electric service throughout the country.

Fecho, T.R. [AEP Resources Service Co., Columbus, OH (United States); Howell, B.M.; Margvelashvili, M.; Tuckhorn, D.D. [Burns and Roe Enterprises, Inc., Pittsburgh, PA (United States); Kreczko, A. [ICF Kaiser, Fairfax, VA (United States)

1999-11-01T23:59:59.000Z

420

The future of GPS-based electric power system measurements, operation and control  

SciTech Connect (OSTI)

Much of modern society is powered by inexpensive and reliable electricity delivered by a complex and elaborate electric power network. Electrical utilities are currently using the Global Positioning System-NAVSTAR (GPS) timekeeping to improve the network`s reliability. Currently, GPS synchronizes the clocks on dynamic recorders and aids in post-mortem analysis of network disturbances. Two major projects have demonstrated the use of GPS-synchronized power system measurements. In 1992, the Electric Power Research Institute`s (EPRI) sponsored Phase Measurements Project used a commercially available Phasor Measurements Unit (PMU) to collect GPS-synchronized measurements for analyzing power system problems. In 1995, Bonneville Power Administration (BPA) and Western Area Power Administration (WAPA) under DOE`s and EPRI`s sponsorship launched the Wide Area Measurements (WAMS) project. WAMS demonstrated GPS-synchronized measurements over a large area of their power networks and demonstrated the networking of GPS-based measurement systems in BPA and WAPA. The phasor measurement technology has also been used to conduct dynamic power system tests. During these tests, a large dynamic resistor was inserted to simulate a small power system disturbance.

Rizy, D.T. [Oak Ridge National Lab., TN (United States); Wilson, R.E. [Western Area Power Administration, Golden, CO (United States); Martin, K.E.; Litzenberger, W.H. [Bonneville Power Administration, Portland, OR (United States); Hauer, J.F. [Pacific Northwest National Lab., Richland, WA (United States); Overholt, P.N. [Dept. of Energy, Washington, DC (United States); Sobajic, D.J. [Electric Power Research Inst., Palo Alto, CA (United States)

1998-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Harmonic effects of solar geomagnetically induced currents on the electrical distribution system in nuclear power plants  

SciTech Connect (OSTI)

Most previous analysis on the effects of geomagnetically induced currents (GIC) on electric utility systems has steady-state phenomena, with the main interest in the generator step-up transformer and the off-site power system. This paper begins to investigate the possible effects that a GIC event might have on the power plant itself, by examining the harmonic distortion that could exist at various voltage levels in the on-site distribution system.

Carroll, D.P. [Florida Univ., Gainesville, FL (United States); Kasturi, S. [MOS, Inc., Melville, NY (United States); Subudhi, M.; Gunther, W. [Brookhaven National Lab., Upton, NY (United States)

1992-12-31T23:59:59.000Z

422

Harmonic effects of solar geomagnetically induced currents on the electrical distribution system in nuclear power plants  

SciTech Connect (OSTI)

Most previous analysis on the effects of geomagnetically induced currents (GIC) on electric utility systems has steady-state phenomena, with the main interest in the generator step-up transformer and the off-site power system. This paper begins to investigate the possible effects that a GIC event might have on the power plant itself, by examining the harmonic distortion that could exist at various voltage levels in the on-site distribution system.

Carroll, D.P. (Florida Univ., Gainesville, FL (United States)); Kasturi, S. (MOS, Inc., Melville, NY (United States)); Subudhi, M.; Gunther, W. (Brookhaven National Lab., Upton, NY (United States))

1992-01-01T23:59:59.000Z

423

Development and utilization of new and renewable energy with Stirling engine system for electricity in China  

SciTech Connect (OSTI)

China is the largest developing country in the world. Self-supporting and self-sustaining energy supply is the only solution for development. Recently, fast economic development exposed gradually increasing pressure of energy demand and environment concern. In order to increase the production of electricity of China, the Stirling engine system should be developed. This paper provides an investigation of energy production and consumption in China. The main features of the energy consumption and the development objectives of China`s electric power industry are also described. The necessity and possibility of development of Stirling engine system is discussed.

Dong, W.; Abenavoli, R.I. [Univ. La Sapienza, Rome (Italy). Dipt. di Meccanica e Aeronautica; Carlini, M. [Univ. della Tuscia, Viterbo (Italy). Dipt. di Scienze dell` Ambiente Forestale e delle sue Risorse

1996-12-31T23:59:59.000Z

424

Proton-irradiation-induced anomaly in the electrical conductivity of a hydrogen-bonded ferroelastic system  

SciTech Connect (OSTI)

An anomalous abrupt drop in the electrical conductivity has been observed at the ferroelastic phase transition of a proton-irradiated system of hydrogen-bonded TlH{sub 2}PO{sub 4}. As a result of the high-resolution {sup 31}P NMR chemical-shift measurements, distinct changes in the atomic displacements due to the irradiation were identified in the ferroelastic and paraelastic phases. Besides, {sup 1}H NMR spin-spin relaxation measurements revealed a change due to the irradiation in the proton dynamics at the ferroelastic phase transition, apparently accounting for the much-reduced electrical conductivity in the paraelastic phase of the irradiated system.

Kim, Se-Hun [Department of Physics and Institute for Nano Science, Korea University, Seoul 136-713 (Korea, Republic of); Faculty of Science Education, Jeju National University, Jeju 690-756 (Korea, Republic of); Lee, Kyu Won; Lee, Cheol Eui [Department of Physics and Institute for Nano Science, Korea University, Seoul 136-713 (Korea, Republic of); Lee, Kwang-Sei [Department of Nano Systems Engineering, Center for Nano Manufacturing, Inje University, Gimhae 621-749, Gyeongnam (Korea, Republic of)

2009-11-01T23:59:59.000Z

425

Application of PV panels into electricity generation system of compression stations in gas transporting systems.  

E-Print Network [OSTI]

??  This thesis deals with problems of electricity generation and saving at compression stations of magistral gas transporting pipelines in Russia. Russia is a biggest… (more)

Belyaev, Alexey

2013-01-01T23:59:59.000Z

426

A Simple Path Loss Prediction Model for HVAC Systems O. K. Tonguz, D. D. Stancil, A. E. Xhafa, A. G. Cepni, P. V. Nikitin  

E-Print Network [OSTI]

1 A Simple Path Loss Prediction Model for HVAC Systems O. K. Tonguz, D. D. Stancil, A. E. Xhafa, A, and air conditioning (HVAC) cylindrical ducts in 2.4-2.5 GHz frequency band. The model we propose predicts the average power loss between a transmitter-receiver pair in an HVAC duct network. This prediction model

Stancil, Daniel D.

427

EIC Climate Change Technology Conference 2013 Electric Trolleybus System Proposed for Downtown St. John's for Private Vehicles  

E-Print Network [OSTI]

, specifically an electric trolleybus system for controlling both on-road vehicle volumes and emissions fuel, air pollution, climate change, global warming, external costs, vehicle population, electric (ICE) with electric power [2] and to propel automobiles with steam engines but high costs and risk

Coles, Cynthia

428

Development of a measuring system for parking position Can wireless charging of electric vehicles deliver its full  

E-Print Network [OSTI]

of our projects aims to obtain a better understanding of wireless charging of electric vehicles regarding connection of electric vehicles to the grid. In order for wireless charging to be successful1 Development of a measuring system for parking position ­ Can wireless charging of electric

Zhao, Yuxiao

429

AN OPTIMIZED TWO-CAPACITY ADVANCED ELECTRIC HEAT PUMP S. E. Veyo, Manager, Heat Exchange Systems Research  

E-Print Network [OSTI]

#12;AN OPTIMIZED TWO-CAPACITY ADVANCED ELECTRIC HEAT PUMP S. E. Veyo S. E. Veyo, Manager, Heat Exchange Systems Research Westinghouse Electric Corporation, R&D Center 1310 Beulah Road Pittsburgh, PA 15235 KEYWORDS: heat pump, air conditioner, electric, residential, energy, compressor, fan, blower, heat

Oak Ridge National Laboratory

430

Data Acquisition System for Electric Vehicle's Driving Motor Test Bench Based on VC++  

Science Journals Connector (OSTI)

In order to solve such problems as great labor intensity, high cost, low efficiency and accuracy during the performance experiment for driving motor system of electric vehicles, and realize data acquisition automatically and synchronously, a data acquisition system for driving motor test bench based on visual instruments is designed. This data acquisition system can be used to obtain the driving motor's parameters of currents and voltages at the same time. This system's hardware is based on electric vehicle's motor test bench in Beijing Institute of Technology, and combined with PXI2010 data acquisition card from ADLINK Company. Visual c++ software is adopted as development tool. In this paper, the design and realization of the hardware and software are presented. Experiment results show that this system improves the efficiency and quality of testing task with high utility. And experiment data can be obtained accurately.

Song Qiang; Lv Chenguang

2012-01-01T23:59:59.000Z

431

EAC Recommendations on Expanding and Modernizing the Electric Power Delivery System for the 21st Century (September 2014)  

Broader source: Energy.gov [DOE]

EAC Recommendations from the September 2014 meeting on Expanding and Modernizing the Electric Power Delivery System for the 21st Century

432

Investigating the impact of wave energy in the electric power system - A case study of southern Sweden.  

E-Print Network [OSTI]

??The aim of this thesis has been to investigate the impact of wave energy in the electric power system of southern Sweden. How does wave… (more)

von Sydow, Tyra

2014-01-01T23:59:59.000Z

433

Solar Trough Organic Rankine Electricity System (STORES) Stage 1: Power Plant Optimization and Economics; November 2000 -- May 2005  

SciTech Connect (OSTI)

Report regarding a Stage 1 Study to further develop the concept of the Solar Trough Organic Rankine Cycle Electricity Systems (STORES).

Prabhu, E.

2006-03-01T23:59:59.000Z

434

Homeowners Guide to Financing a Grid-Connected Solar Electric System (Brochure), Solar Energy Technologies Program (SETP)  

Broader source: Energy.gov [DOE]

This guide provides an overview of the financing options that may be available to homeowners who are considering installing a solar electric system on their house.

435

Product-service systems in the electric car industry: critical success factors in marketing  

Science Journals Connector (OSTI)

Abstract In the electric car industry the service component assumes considerable importance and it is a relevant factor in purchasing decisions. Therefore, proper management of the “Product-Service System” (PSS) is essential. This article aims to 1) identify the main sub-systems of the PSS in the electric car industry and 2) identify the critical success factors (CSFs) in marketing. The review of the literature led to the definition of four sub-systems: vehicle, infrastructure, on-board electronics, and energy. Based on these PSS sub-systems, organisations belonging to each sub-system were selected, and five managers were interviewed. The data were analysed using a cognitive mapping technique. Ten \\{CSFs\\} were identified, of which two belong to the vehicle sub-system (value proposition and product-service system bundle); one relates to the electronic on-board sub-system (advanced navigation systems); three relate to infrastructure sub-system (incentives, alternative transport systems and advocacy campaigns) and three belong to infrastructure and energy sub-systems (ease of use, proximity of charging point and standardisation). Finally, partnerships among players involve all the four sub-systems. Moreover, the relevance/manageability matrix offers evidence that partnerships represent a priority factor that requires immediate action from companies. The research offers a new means to identify \\{CSFs\\} by using a PSS analysis rather than taking an industry sector perspective.

Sergio Cherubini; Gennaro Iasevoli; Laura Michelini

2014-01-01T23:59:59.000Z

436

Economic evaluation of losses to electric power utilities caused by ash fouling. Final technical report, November 1, 1979-April 30, 1980  

SciTech Connect (OSTI)

Problems with convection ash fouling and wall slagging were considerable during our study. The Dakota lignites posed the greatest problems, particularly with fouling. The subbituminous coals had considerable problems, related mostly with wall slagging. The Texas lignites had few problems, and those were only associated with wall slagging. The generation losses were as follows: The Dakota lignite burning stations averaged an overall availability of 87.13%. Convection fouling outages were responsible for 57.75% of this outage time for a decrease in availability of 7.43%. Fouling was responsible for curtailment losses of 317,649 Mwh or 8.25% of the remaining available generation. Slagging was responsible for losses of 2732 megawatt hours or .07% of the remaining available generation. Total ash related losses amounted to 16.08% of the total available generation. The subbituminous burning stations averaged an overall availability of 78.36%. Total ash related losses amounted to 1.54% of the total available generation. The Texas lignite burning stations averaged an overall availability of 80.63%. No ash related outage losses occurred. Slagging curtailments accounted 0.08% of the total available generation. Costs due to ash fouling and slagging related curtailments are a tremendous sum. Seven power stations were studied for a six month period to assess costs. The total cost directly attributable to ash slagging and fouling condition was $20,638,113. Recommendations for reducing the problems involve soot blowers, control of furnace gas exit temperature, water blowers and more conservative boiler design.

Burkhardt, F.R.; Persnger, M.M.

1980-01-01T23:59:59.000Z

437

Multiobjective electric distribution system expansion planning using hybrid energy hub concept  

Science Journals Connector (OSTI)

This paper presents a novel approach for optimal electric distribution system expansion planning (OEDSEP) using a hybrid energy hub concept. The proposed method uses an energy hub model to explore the impacts of energy carrier systems on OEDSEP procedure. This algorithm decomposes the OEDSEP problem into three subproblems to achieve an optimal expansion planning of a system in which the investment and operational costs are minimized, while the reliability of the system is maximized. The algorithm was successfully tested in the present research for an urban distribution system.

Mehrdad Setayesh Nazar; Mahmood R. Haghifam

2009-01-01T23:59:59.000Z

438

Physical Impacts of Climate Change on the Western US Electricity System: A Scoping Study  

SciTech Connect (OSTI)

This paper presents an exploratory study of the possible physical impacts of climate change on the electric power system, and how these impacts could be incorporated into resource planning in the Western United States. While many aspects of climate change and energy have been discussed in the literature, there has not yet been a systematic review of the relationship between specific physical effects and the quantitative analyses that are commonly used in planning studies. The core of the problem is to understand how the electric system is vulnerable to physical weather risk, and how to make use of information from climate models to characterize the way these risks may evolve over time, including a treatment of uncertainty. In this paper, to provide the necessary technical background in climate science, we present an overview of the basic physics of climate and explain some of the methodologies used in climate modeling studies, particularly the importance of emissions scenarios. We also provide a brief survey of recent climate-related studies relevant to electric system planning in the Western US. To define the institutional context, we discuss the core elements of the resource and reliability planning processes used currently by utilities and by the Western Electricity Coordinating Council. To illustrate more precisely how climate-related risk could be incorporated into modeling exercises, we discuss three idealized examples. Overall, we argue that existing methods of analysis can and should be extended to encompass the uncertainties related to future climate. While the focus here is on risk related to physical impacts, the same principles apply to a consideration of how future climate change policy decisions might impact the design and functioning of the electric grid. We conclude with some suggestions and recommendations on how to begin developing this approach within the existing electric system planning framework for the West.

Coughlin, Katie; Goldman, Charles

2008-12-01T23:59:59.000Z

439

Dynamic Positioning System as Dynamic Energy Storage on Diesel-Electric Ships  

E-Print Network [OSTI]

1 Dynamic Positioning System as Dynamic Energy Storage on Diesel-Electric Ships Tor A. Johansen in order to implement energy storage in the kinetic and potential energy of the ship motion using the DP in order to relate the dynamic energy storage capacity to the maximum allowed ship position deviation

Johansen, Tor Arne

440

Development of a Segregated Municipal Solid Waste Gasification System for Electrical Power Generation  

E-Print Network [OSTI]

. The overall engine-generator efficiency at 7.5 kW electrical power load was lower at 19.81% for gasoline fueled engine compared to 35.27% for synthesis gas. The pressure swing adsorption (PSA) system increased the net heating value of the product gas...

Maglinao, Amado Latayan

2013-04-11T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Photochemical Conversion of Solar Energy into Electrical Energy in an Eosin–Mannose System  

Science Journals Connector (OSTI)

Solar energy has been converted into electrical energy using an eosin–mannose system in a ... and 67.20 ?W, respectively. The observed conversion efficiency was 0.6461% and the fill factor was 0.3739 against an a...

Mukesh Kumar Bhimwal; K. M. Gangotri

2012-01-01T23:59:59.000Z

442

Research Initiative Will Demonstrate Low Temperature Geothermal Electrical Power Generation Systems Using Oilfield Fluids  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy's (DOE) Geothermal Technologies Office (GTO) is announcing a new collaboration with the Office of Fossil Energy (FE) to demonstrate the versatility, reliability, and deployment capabilities of low-temperature geothermal electrical power generation systems using co-produced water from oilfield operations at the Rocky Mountain Oilfield Testing Center (RMOTC) in Wyoming.

443

ELECTRICAL ENGINEERING 4PL4 ENERGY SYSTEM AND MANAGEMENT FALL 2010  

E-Print Network [OSTI]

ELECTRICAL ENGINEERING 4PL4 ENERGY SYSTEM AND MANAGEMENT FALL 2010 Course Outline (dated Aug 23 OR ORAL). COURSE LOADING: · Lectures: 3 hours/week · Study time: 6 hours/week · Laboratory (4; systemwide energy flow and control; modeling and simulation; economics and management; fault prediction

Haykin, Simon

444

Impacts of Regional Electricity Prices and Building Type on the Economics of Commercial Photovoltaic Systems  

SciTech Connect (OSTI)

To identify the impacts of regional electricity prices and building type on the economics of solar photovoltaic (PV) systems, 207 rate structures across 77 locations and 16 commercial building types were evaluated. Results for expected solar value are reported for each location and building type. Aggregated results are also reported, showing general trends across various impact categories.

Ong, S.; Campbell, C.; Clark, N.

2012-12-01T23:59:59.000Z

445

Potential of distributed wood-based biopower systems serving basic electricity needs in rural Uganda  

E-Print Network [OSTI]

Potential of distributed wood-based biopower systems serving basic electricity needs in rural October 2009 Revised 8 January 2010 Accepted 9 January 2010 Keywords: Rural electrification Gasification supply. Although virtually non-existent, rural electrification is receiving very little attention

Vermont, University of

446

Design of an electro-mechanical portable system using natural human body movements for electricity generation  

E-Print Network [OSTI]

environment. The mechanical energy produced during human movement, along the same lines as heat emitted of energy management, ergonomics and mechatronic technology. 2. The human walk: A natural motion Although TDesign of an electro-mechanical portable system using natural human body movements for electricity

Paris-Sud XI, Université de

447

Number and propagation of line outages in cascading events in electric power transmission systems  

E-Print Network [OSTI]

Number and propagation of line outages in cascading events in electric power transmission systems of transmission lines. We estimate from observed utility data how transmission line outages propagate, and obtain of transmission lines. The multiple mechanisms involved these cascading outages are many and varied, and the power

Dobson, Ian

448

Integrating Dynamic Pricing of Electricity into Energy Aware Scheduling for HPC Systems  

E-Print Network [OSTI]

- ure that the size of these jobs affects their energy efficiency or not. We hypothesizeIntegrating Dynamic Pricing of Electricity into Energy Aware Scheduling for HPC Systems Xu Yang aimed at reducing en- ergy consumption in HPC environments. In this paper we propose a job power aware

Sun, Xian-He

449

Analysis of combined cooling, heating, and power systems under a compromised electric–thermal load strategy  

Science Journals Connector (OSTI)

Abstract Following the electric load (FE) and following the thermal load (FT) strategies both have advantages and disadvantages for combined cooling, heating and power (CCHP) systems. In this paper, the performance of different strategies is evaluated under operation cost (OC), carbon dioxide emission (CDE) and exergy efficiency (EE). Analysis of different loads in one hour is conducted under the assumption that the additional electricity is not allowed to be sold back to the grid. The results show that FE produces less OC, less CDE, and FT produces higher EE when the electric load is larger. However, FE produces less OC, less CDE and higher EE when the thermal load is larger. Based on a hybrid electric–thermal load (HET) strategy, compromised electric–thermal (CET) strategies are innovatively proposed using the efficacy coefficient method. Additional, the CCHP system of a hotel in Tianjin is analyzed for all of the strategies. The results for an entire year indicate the first CET strategy is the optimal one when dealing with OC, CDE and EE. And the second CET is the optimal one when dealing with OC and EE. Moreover, the laws are strictly correct for different buildings in qualitative terms.

Gang Han; Shijun You; Tianzhen Ye; Peng Sun; Huan Zhang

2014-01-01T23:59:59.000Z

450

Improving the efficiency of electric motor systems: Moving beyond efficient motors  

SciTech Connect (OSTI)

Electric motors operating in the US consume more than half of the nation's electricity. Electric utilities were among the first groups to begin offering programs to promote efficiency in electric motors. A 1994 Electric Power Research Institute (EPRI) survey of utility demand-side management (DSM) programs found 151 efficient-motors and drives programs being offered by 95 utilities in the US. The most common programs have been prescriptive rebates for the purchase of high-efficiency motors. While many of these programs have been popular and successful, their cost is an issue of contention with some industrial consumer groups and within utilities attempting to reduce program costs. With the minimum motor efficiency regulations in the Energy Policy Act of 1992 (EPAct) set to go into effect for most products in October 1997, utilities will need to move beyond these simple high-efficiency motor rebate programs if they are to continue to offer motor programs to their customers. The focus will also have to shift from simply motors to motor-system issues. As a 1993 US Department of Energy (DOE)-sponsored motor-system roundtable identified, motor-system expertise is not widely available, and many electric utilities will need assistance to develop and implement new programs. It is thus important that information be made available to these utilities on how to analyze customers' motor-systems needs, what program designs will most likely meet these needs, what resources they will need to implement their programs, and where to find those resources. DOE's Motor Challenge has already been identifying or developing many of these resources, and these are already being used by some utilities. If utilities are provided a program context, more of them can make better use of these resources and achieve success from their own standpoint (e.g., increased customer satisfaction and improved customer retention), from the customers' standpoint (e.g., lower motor-system costs and improved performance), and from the national standpoint (e.g., reduced motorsystem energy consumption and lower carbon emissions). The American Council for an Energy-Efficient Economy (ACEEE) has begun to establish this context by analyzing utility motor-systems programs. This work builds upon past ACEEE analyses of other utility DSM programs and ACEEE's extensive involvement in the technical aspects and design of programs involving electric motor systems.

Elliott, R.N.; Pye, M.; Nadel, S.

1997-07-01T23:59:59.000Z

451

Electrical Engineer  

Broader source: Energy.gov [DOE]

This position is located in the Office of Electric Reliability. The Office of Electric Reliability helps protect and improve the reliability and security of the nation's bulk power system through...

452

The Impacts of Commercial Electric Utility Rate Structure Elements on the Economics of Photovoltaic Systems  

Broader source: Energy.gov [DOE]

This analysis uses simulated building data, simulated solar photovoltaic (PV) data, and actual electric utility tariff data from 25 cities to better understand the impacts of different commercial rate structures on the value of solar PV systems. By analyzing and comparing 55 unique rate structures across the United States, this study seeks to identify the rate components that have the greatest effect on the value of PV systems.

453

On the Electric Dipole Polarizability of the Three-Hadron Bound System  

E-Print Network [OSTI]

A simple analytical expression for the electric dipole polarizability of the three-hadron bound system having only one stable bound state has been derived neglecting by the higher orbital components of the off-shell three-body transition matrix at the energy of the bound state. As a case in point, we have estimated the electric dipole polarizability of the triton, using a cluster triton wave function and the Hulthen potential to describe the related p-n and n-d bound states.

V. F. Kharchenko; A. V. Kharchenko

2010-03-30T23:59:59.000Z

454

Method and apparatus for steam mixing a nuclear fueled electricity generation system  

DOE Patents [OSTI]

A method and apparatus for improving the efficiency and performance of a nuclear electrical generation system that comprises the addition of steam handling equipment to an existing plant that results in a surprising increase in plant performance. More particularly, a gas turbine electrical generation system with heat recovery boiler is installed along with a micro-jet high pressure and a low pressure mixer superheater. Depending upon plant characteristics, the existing moisture separator reheater (MSR) can be either augmented or done away with. The instant invention enables a reduction in T.sub.hot without a derating of the reactor unit, and improves efficiency of the plant's electrical conversion cycle. Coupled with this advantage is a possible extension of the plant's fuel cycle length due to an increased electrical conversion efficiency. The reduction in T.sub.hot further allows for a surprising extension of steam generator life. An additional advantage is the reduction in erosion/corrosion of secondary system components including turbine blades and diaphragms. The gas turbine generator used in the instant invention can also replace or augment existing peak or emergency power needs. Another benefit of the instant invention is the extension of plant life and the reduction of downtime due to refueling.

Tsiklauri, Georgi V. (Richland, WA); Durst, Bruce M. (Kennewick, WA)

1996-01-01T23:59:59.000Z

455

Demonstration and testing of an all-electric desiccant dehumidifying system at a New Jersey supermarket  

SciTech Connect (OSTI)

A novel all-electric desiccant dehumidifying system was demonstrated and evaluated at a supermarket field test site in New Jersey during 1995. Unlike traditional desiccant systems, this system uses waste heat from vapor-compression refrigerating condensers to regenerate a recently developed desiccant material. The 7,000-cfm (3,300-L/s) unit has a latent capacity of approximately 7 tons (25 kW), with fan energy as the only purchased energy source. This paper discusses the performance of the desiccant system under field conditions and its interactions with the refrigerating and conventional heating, ventilating, and air-conditioning (HVAC) systems. Results indicate that the system is three to four times more efficient for moisture removal than a conventional HVAC system with no deleterious effects on refrigerating system operations.

Brandemuehl, M.J. [Univ. of Colorado, Boulder, CO (United States). Joint Center for Energy Management; Khattar, M.K. [Electric Power Research Inst., Palo Alto, CA (United States)

1997-12-31T23:59:59.000Z

456

A Queueing Based Scheduling Approach to Plug-In Electric Vehicle Dispatch in Distribution Systems  

E-Print Network [OSTI]

Large-scale integration of plug-in electric vehicles (PEV) in power systems can cause severe issues to the existing distribution system, such as branch congestions and significant voltage drops. As a consequence, smart charging strategies are crucial for the secure and reliable operation of the power system. This paper tries to achieve high penetration level of PEVs with the existing distribution system infrastructure by proposing a smart charging algorithm that can optimally utilize the distribution system capacity. Specifically, the paper proposes a max-weight PEV dispatch algorithm to control the PEV charging rates, subject to power system physical limits. The proposed max-weight PEV dispatch algorithm is proved to be throughput optimal under very mild assumptions on the stochastic dynamics in the system. This suggests that the costly distribution system infrastructure upgrade can be avoided, or failing that, at least successfully deferred. The proposed PEV dispatch algorithm is particularly attractive in ...

Li, Qiao; Ilic, Marija D

2012-01-01T23:59:59.000Z

457

Effects of variable renewable power on a country-scale electricity system: High penetration of hydro power plants and wind farms in electricity generation  

Science Journals Connector (OSTI)

The present article analyses the effects caused by variable power. The analysis concerns a country-scale electricity system with a relatively high penetration of seasonally variable hydro power plants and wind farms in the total electricity generation in 2030. For this purpose, the Latvian electricity system was chosen as an appropriate case study, as around half of its electricity is already generated from hydro power and numerous wind farm installations are planned for 2030. Results indicate that in such systems high renewable power variations occur between seasons causing a high probability of power deficit in the winter and power surplus in the spring. Based on the results, the wind farms' influence on the power deficit and surplus occurrences are discussed in detail. Wind farm generation decreases the probability of the electricity system being in power deficit, but increases the probability of the system being in power surplus. In the latter situation, the maximum value of power surplus increases since it is enhanced by the wind farm generation. Probability equations to express these changes are provided.

Arturs Purvins; Ioulia T. Papaioannou; Irina Oleinikova; Evangelos Tzimas

2012-01-01T23:59:59.000Z

458

Advanced Systems of Efficient Use of Electrical Energy SURE (Smart Grid  

Open Energy Info (EERE)

Efficient Use of Electrical Energy SURE (Smart Grid Efficient Use of Electrical Energy SURE (Smart Grid Project) Jump to: navigation, search Project Name Advanced Systems of Efficient Use of Electrical Energy SURE Country Slovenia Coordinates 46.151241°, 14.995463° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":46.151241,"lon":14.995463,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

459

Abstract--We consider the management of electric vehicle (EV) loads within a market-based Electric Power System  

E-Print Network [OSTI]

battery charging while engaging in energy and reserve capacity transactions in the wholesale power market day-ahead and real-time power market framework similar to that used in the major USA power pools (PJMAbstract--We consider the management of electric vehicle (EV) loads within a market-based Electric

Caramanis, Michael

460

A binary ACO for controlling all-electric power take off system in wave energy converters  

Science Journals Connector (OSTI)

This paper describes a metaheuristic algorithm for controlling all-electric power take off (PTO) system of wave energy converters. It provides optimal parameter values to the controller following the instantaneously changing sea state. The output of the algorithm is used to tune the electrical control systems in the PTO system in order to provide sufficient time for the point absorber to achieve desired heaving resonance compare with the ocean wave. This maximises the power extraction capability of WECs. The method consists of a binary ant colony optimisation algorithm capable of performing optimisation in continuous space. A binary encoding method is introduced to enhance its search exploration feature, hence allowing it to find optimal solution in short time.

Phen Chiak See; Vin Cent Tai; Marta Molinas

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Process for generating electricity in a pressurized fluidized-bed combustor system  

DOE Patents [OSTI]

A process and apparatus for generating electricity using a gas turbine as part of a pressurized fluidized-bed combustor system wherein coal is fed as a fuel in a slurry in which other constituents, including a sulfur sorbent such as limestone, are added. The coal is combusted with air in a pressurized combustion chamber wherein most of the residual sulfur in the coal is captured by the sulfur sorbent. After particulates are removed from the flue gas, the gas expands in a turbine, thereby generating electric power. The spent flue gas is cooled by heat exchange with system combustion air and/or system liquid streams, and the condensate is returned to the feed slurry.

Kasper, Stanley (Pittsburgh, PA)

1991-01-01T23:59:59.000Z

462

Design of an advanced electric power distribution systems using seeker optimization algorithm  

Science Journals Connector (OSTI)

Abstract The power distribution network design problem has a growing impact on secure and economical operation of distribution power system. This issue is well known as a non-linear, multi-modal and multi-objective optimization problem where global optimization techniques are required in order to avoid local minima. In this study, a new approach using seeker optimization algorithm (SOA) is proposed for distribution system planning problem with simultaneous placement of automatic reclosers (RAs), considering total system economic cost, overall system reliability, system power losses and voltage deviations as an objective functions. Normally, conventional power distribution systems (CPDS) are radial in nature and momentary fault in the system causes large area of the grid to be blacked out, which leads to huge load interruptions. Reliable distribution system minimize this effect by allowing faults to clear themselves by protection device operations such as automatic reclosers (RAs) and quickly restores the power through system reconfiguration by minimizing the loads affected. Thus, in order to prevent the system from momentary faults, simultaneous placement of \\{RAs\\} has been also done which leads to a design of an advanced power distribution system (APDS). Thus, the reliability issues are of major importance for effective planning of an APDS. For evaluation of reliability measure, the contingency-load-loss index (CLLI) is assessed in this paper, which is independent of the failure rate and fault repair duration of the feeder branches. The performance of the proposed algorithm is extensively assessed and comparisons are made with Particle Swarm Optimization (PSOs), Genetic Algorithm (GA) and graph theoretical approach (GTA) applied on the 54 and 100-bus primary power distribution systems. The simulation results show that the proposed approach performed better than the other listed algorithms and can be efficiently used for the optimal design of an advanced power distribution system.

Deepak Kumar; S.R. Samantaray

2014-01-01T23:59:59.000Z

463

Abstract--Electrical Distribution Systems (EDS) are facing ever-increased complexity due, in part, to fast growing consumer  

E-Print Network [OSTI]

. As such Electrical Distribution Systems will require new planning strategies and tools, new design methodologies1 Abstract-- Electrical Distribution Systems (EDS) are facing ever-increased complexity due, in part, to fast growing consumer demands and the integration of large amounts of distributed energy

Paris-Sud XI, Université de

464

Abstract--Electrical Distribution Systems (EDS) are facing ever-increasing complexity due to fast growing demand and large  

E-Print Network [OSTI]

operation. As such Electrical Distribution Systems will require new planning strategies and tools, new1 Abstract-- Electrical Distribution Systems (EDS) are facing ever-increasing complexity due to fast growing demand and large amount of distributed energy resources integration. The conventional

Paris-Sud XI, Université de

465

Optimal Tariff Period Determination Cost of electricity generation is closely related to system demand. In general, the  

E-Print Network [OSTI]

Optimal Tariff Period Determination Cost of electricity generation is closely related to system setting is giving signal to customers the time variant cost of supplying electricity. Since the costs demand. In general, the generation cost is higher during system peak period, and vice versa. In Hong Kong

466

Superconductivity for Electric Systems Annual Peer Review Washington, DC July 23-25, 2003 OAK RIDGE NATIONAL LABORATORY  

E-Print Network [OSTI]

(Marty) 2G wire manufacturing at AMSC 2G wire characteristics Prototype 2000 Amp 2G cable performanceSuperconductivity for Electric Systems Annual Peer Review Washington, DC ­ July 23-25, 2003 OAK-in ORNL-AMSC CRADA: Development of 2G YBCO-RABiTS Wires #12;Superconductivity for Electric Systems Annual

467

The impact of electric vehicles on the Southern California Edison System. Final report  

SciTech Connect (OSTI)

This report describes the results of the first phase of an investigation of the impacts of electric vehicles (EVs) in southern California. The investigation focuses on the Southern California Edison Company (SCE) which provides electric service for approximately 60% of southern California. The project is supported by the ``Air Quality Impacts of Energy Efficiency`` Program of the California Institute for Energy Efficiency (CIEE). The first phase of the research is organized around how EVs might be viewed by customers, vehicle manufacturers and electric utility companies. The vehicle manufacturers` view has been studied with special emphasis on the role of marketable permit systems. The utilities` view of EVs is the subject of this report. The review is particularly important as several case studies of EVs in southern California have been conducted in recent years. The dynamics of a growing population of EVs is explained. Chapter 5 explains a simple method of deriving the electricity demands which could result from the operation of EVs in southern California. The method is demonstrated for several simple examples and then used to find the demands associated with each of the eight EV scenarios. Chapter 6 reports the impacts on SCE operations from the new demands for electricity. Impacts are summarized in terms of system operating costs, reliability of service, and changes in the utility`s average electric rate. Chapter 7 turns to the emissions of air pollutants released by the operation of EVs, conventional vehicles (CVs) and power plants. Chapter 8 takes the air pollution analysis one step further by examining the possible reduction in ambient ozone concentration in southern California.

Ford, A.

1992-07-01T23:59:59.000Z

468

The impact of electric vehicles on the Southern California Edison System  

SciTech Connect (OSTI)

This report describes the results of the first phase of an investigation of the impacts of electric vehicles (EVs) in southern California. The investigation focuses on the Southern California Edison Company (SCE) which provides electric service for approximately 60% of southern California. The project is supported by the Air Quality Impacts of Energy Efficiency'' Program of the California Institute for Energy Efficiency (CIEE). The first phase of the research is organized around how EVs might be viewed by customers, vehicle manufacturers and electric utility companies. The vehicle manufacturers' view has been studied with special emphasis on the role of marketable permit systems. The utilities' view of EVs is the subject of this report. The review is particularly important as several case studies of EVs in southern California have been conducted in recent years. The dynamics of a growing population of EVs is explained. Chapter 5 explains a simple method of deriving the electricity demands which could result from the operation of EVs in southern California. The method is demonstrated for several simple examples and then used to find the demands associated with each of the eight EV scenarios. Chapter 6 reports the impacts on SCE operations from the new demands for electricity. Impacts are summarized in terms of system operating costs, reliability of service, and changes in the utility's average electric rate. Chapter 7 turns to the emissions of air pollutants released by the operation of EVs, conventional vehicles (CVs) and power plants. Chapter 8 takes the air pollution analysis one step further by examining the possible reduction in ambient ozone concentration in southern California.

Ford, A.

1992-07-01T23:59:59.000Z

469

STAFF PAPER A Review of Transmission Losses in  

E-Print Network [OSTI]

Electricity Analysis Office Electricity Supply Analysis Division California Energy Commission and distribution loss values in planning studies. In this effort, staff analyzed data, researched literature STAFF PAPER A Review of Transmission Losses in Planning Studies Lana Wong

470

Inelastic exchange scattering in electron-energy-loss spectroscopy: Localized excitations in transition-metal and rare-earth systems  

Science Journals Connector (OSTI)

Cross sections for quasiatomic excitation by exchange scattering of electrons are calculated in the Born-Ochkur approximation for 3p-3d and 3d-3d transitions in transition-metal systems, and for 4d-4f and 4f-4f transitions in rare earths. The energy dependence of the spin polarization of 3p-3d and 4d-4f losses in reflection electron-energy-loss spectroscopy from ferromagnetic surfaces involves a balance of small-angle spin-dependent inelastic processes accompanied by a high-angle elastic scattering, and large-angle spin-flip exchange scattering without the need for elastic scattering. Both 3d-3d excitations, e.g., in transition-metal compounds, and 4f-4f excitations in rare earths involve spin-flip transitions whose scattering amplitudes g fall off with momentum transfer q such that the full width at half maximum q1/2 (in a.u.) is given by q1/2?rnl??2, where ?rnl? is the expectation value of r for the 3d or 4f electron. The angular width of the spin-flip differential cross section is then much greater than for dipole transitions, a pattern that helps to account for how these intra-atomic transitions compete with dipole processes for primary energies in excess of 100 eV.

S. J. Porter; J. A. D. Matthew; R. J. Leggott

1994-07-15T23:59:59.000Z

471

Integrating demand into the U.S. electric power system : technical, economic, and regulatory frameworks for responsive load  

E-Print Network [OSTI]

The electric power system in the US developed with the assumption of exogenous, inelastic demand. The resulting evolution of the power system reinforced this assumption as nearly all controls, monitors, and feedbacks were ...

Black, Jason W. (Jason Wayne)

2005-01-01T23:59:59.000Z

472

TEST OF THE PERFORMANCE AND CHARACTERISTICS OF A PROTOTYPE INDUCTIVE POWER COUPLING FOR ELECTRIC HIGHWAY SYSTEMS  

E-Print Network [OSTI]

18. Electrical characteristics of the coupling vs pickup20. Electrical characteristics of the coupling vs frequency.various offsets vs pickup voltage. C. Electrical Tests The

Bolger, J.G.

2010-01-01T23:59:59.000Z

473

Power System Modeling of 20percent Wind-Generated Electricity by 2030  

E-Print Network [OSTI]

Contribution to U.S. Electricity Supply. National Renewable20% of the nation's electricity from wind technology byTERMS wind-generated electricity; wind energy; 20% wind

Hand, Maureen

2008-01-01T23:59:59.000Z

474

REGULATION AND SYSTEM INTERDEPENDENCE: EFFECTS ON THE SITING OF CALIFORNIA ELECTRICAL ENERGY FACILITIES  

E-Print Network [OSTI]

of public and private organizations provide electricity.days of electricity production and the private companiesconcerned with private enterprise. Since electricity pro-

Kooser, J.C.

2013-01-01T23:59:59.000Z

475

Performance analysis of an integrated CHP system with thermal and Electric Energy Storage for residential application  

Science Journals Connector (OSTI)

The aim of this paper is the evaluation of the profitability of micro-CHP systems for residential application. An integrated CHP system composed of a prime mover, an Electric Energy Storage system, a thermal storage system and an auxiliary boiler has been considered. The study has been carried out taking into account a particular electrochemical storage system which requires also thermal energy, during its operation, for a better exploitation of the residual heat discharged by the prime mover. The prime mover could be a conventional Internal Combustion Engine or also an innovative system, such as fuel cell or organic Rankine cycle. An investigation of this integrated CHP system has been carried out, by means of an in-house developed calculation code, performing a thermo-economic analysis. This paper provides useful results, in order to define the optimum sizing of components of the integrated CHP system under investigation; the developed code allows also to evaluate the profitability and the primary energy saving with respect to the separate production of electricity and heat.

M. Bianchi; A. De Pascale; F. Melino

2013-01-01T23:59:59.000Z

476

A nuclear wind/solar oil-shale system for variable electricity and liquid fuels production  

SciTech Connect (OSTI)

The recoverable reserves of oil shale in the United States exceed the total quantity of oil produced to date worldwide. Oil shale contains no oil, rather it contains kerogen which when heated decomposes into oil, gases, and a carbon char. The energy required to heat the kerogen-containing rock to produce the oil is about a quarter of the energy value of the recovered products. If fossil fuels are burned to supply this energy, the greenhouse gas releases are large relative to producing gasoline and diesel from crude oil. The oil shale can be heated underground with steam from nuclear reactors leaving the carbon char underground - a form of carbon sequestration. Because the thermal conductivity of the oil shale is low, the heating process takes months to years. This process characteristic in a system where the reactor dominates the capital costs creates the option to operate the nuclear reactor at base load while providing variable electricity to meet peak electricity demand and heat for the shale oil at times of low electricity demand. This, in turn, may enable the large scale use of renewables such as wind and solar for electricity production because the base-load nuclear plants can provide lower-cost variable backup electricity. Nuclear shale oil may reduce the greenhouse gas releases from using gasoline and diesel in half relative to gasoline and diesel produced from conventional oil. The variable electricity replaces electricity that would have been produced by fossil plants. The carbon credits from replacing fossil fuels for variable electricity production, if assigned to shale oil production, results in a carbon footprint from burning gasoline or diesel from shale oil that may half that of conventional crude oil. The U.S. imports about 10 million barrels of oil per day at a cost of a billion dollars per day. It would require about 200 GW of high-temperature nuclear heat to recover this quantity of shale oil - about two-thirds the thermal output of existing nuclear reactors in the United States. With the added variable electricity production to enable renewables, additional nuclear capacity would be required. (authors)

Forsberg, C. [Massachusetts Inst. of Technology, 77 Massachusetts Ave., Cambridge, MA 012139 (United States)

2012-07-01T23:59:59.000Z

477

Design requirements document for the phase 1 privatization electrical power system  

SciTech Connect (OSTI)

The electrical system for the Phase 1 privatization facilities will support the TWRS mission by providing the electrical power to the Phase 1 privatized facilities. This system will receive power from the Department of Energy-Richland Operations (RL) A4-8 230 kV transmission system powered from Bonneville Power Administration (BPA) Ashe and Midway 230 kV Substations. The existing RL 230 kV transmission line will be modified and looped 1021 into the new 230 kV substation bus. The new substation will be located in the vicinity of the privatized facilities, approximately 3.2 km (2 mi) south of the existing RL A4-8 230 kV transmission line. The substation will be capable of providing up to 40 MW of electrical power to support the Phase 1 privatization facilities and has space for accommodating future expansions. The substation will require at least two 230-13.8 kV transformers, 13.8 kV split bus switchgear, switchgear building, grounding transformers, instrument transformers, control and monitoring equipment, associated protection and isolation devices, lightning protection, yard lighting, cable and raceways, and infrastructure needed to provide desired availability and reliability. The power from the 13.8 kV switchgear located in the switchgear building will be delivered at the privatization facilities site boundaries. The 13.8 kV distribution system inside the privatization facilities site boundaries is the responsibility of the privatization contract.

Singh, G.

1997-10-31T23:59:59.000Z

478

Experimental investigation of battery thermal management system for electric vehicle based on paraffin/copper foam  

Science Journals Connector (OSTI)

Abstract To enhance the heat transfer of phase change material in battery thermal management system for electric vehicle, a battery thermal management system by using paraffin/copper foam was designed and experimentally investigated in this paper. The thermal performances of the system such as temperature reduction and distribution are discussed in detail. The results showed that the local temperature difference in both a single cell and battery module were increased with the increase of discharge current, and obvious fluctuations of local temperature difference can be observed when the electric vehicle is in road operating state. When the battery is discharging at constant current, the maximum temperature and local temperature difference of the battery module with paraffin/copper foam was lower than 45 °C and 5 °C, respectively. After the battery thermal management system was assembled in electric vehicle, the maximum temperature and local temperature difference in road operating state was lower than 40 °C and 3 °C, respectively. The experimental results demonstrated that paraffin/copper foam coupled battery thermal management presented an excellent cooling performance.

Zhonghao Rao; Yutao Huo; Xinjian Liu; Guoqing Zhang

2014-01-01T23:59:59.000Z

479

Multiple pole electromagnetic propulsion system with separated ballistic guidance and electrical current contact surfaces  

DOE Patents [OSTI]

An electromagnetic propulsion system is disclosed having separate rails for ballistic guidance and for carrying current. In this system, one or more pairs of ballistic guidance rails are provided, with each ballistic guidance rail having a pair of current carrying rails joined to it to form a combined rail. Each combined rail is separated electrically from adjacent combined rails by electrically insulating blocks. Each of the current carrying rails in a given combined rail pair have the same electrical polarity, and the polarities alternate between adjacent combined rails. Armatures contact current carrying rails to complete the circuit to generate the accelerating Lorentz force on the armatures. Bore riders on the sabot and/or projectile are in contact with the ballistic guide rails. Separation of the current carrying and ballistic guidance functions increases resistance of the system to rail movement and bending, as well as reduced wear/damage to the rails. In further embodiments, a circumferential over wrap providing compressive force on the rails further increases resistance of the system to rail movement and bending.

Sims, Jr., James R. (Los Alamos, NM)

2008-07-15T23:59:59.000Z

480

Definition: Electric utility | Open Energy Information  

Open Energy Info (EERE)

utility utility Jump to: navigation, search Dictionary.png Electric utility A corporation, agency, or other legal entity that owns and/or operates facilities for the generation, transmission, distribution or sale of electricity primarily for use by the public. Also known as a power provider.[1][2] View on Wikipedia Wikipedia Definition An electric utility is an electric power company that engages in the generation, transmission, and distribution of electricity for sale generally in a regulated market. The electrical utility industry is a major provider of energy in most countries. It is indispensable to factories, commercial establishments, homes, and even most recreational facilities. Lack of electricity causes not only inconvenience, but also economic loss due to reduced industrial production. Utility in the terms of power system,

Note: This page contains sample records for the topic "losses electrical system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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481

DOE Provides up to $51.8 Million to Modernize the U.S. Electric Grid System  

Broader source: Energy.gov (indexed) [DOE]

up to $51.8 Million to Modernize the U.S. Electric up to $51.8 Million to Modernize the U.S. Electric Grid System DOE Provides up to $51.8 Million to Modernize the U.S. Electric Grid System June 27, 2007 - 2:08pm Addthis Superconductor Research Crucial to Improving Power Delivery Equipment WASHINGTON, DC - U.S. Department of Energy (DOE) Secretary Samuel W. Bodman today announced that DOE will provide up to $51.8 million for five cost-shared projects that will help accelerate much-needed modernization of our Nation's electricity grid. This research will advance the development and application of high-temperature superconductors, which have the potential to alleviate congestion on an electricity grid that is experiencing increased demand from consumers. Making investments to modernize our electricity grid; securing a diverse and stable supply of

482

DOE Provides up to $51.8 Million to Modernize the U.S. Electric Grid System  

Broader source: Energy.gov (indexed) [DOE]

Provides up to $51.8 Million to Modernize the U.S. Electric Provides up to $51.8 Million to Modernize the U.S. Electric Grid System DOE Provides up to $51.8 Million to Modernize the U.S. Electric Grid System June 27, 2007 - 11:05am Addthis Superconductor Research Crucial to Improving Power Delivery Equipment WASHINGTON, DC - U.S. Department of Energy (DOE) Secretary Samuel W. Bodman today announced that DOE will provide up to $51.8 million for five cost-shared projects that will help accelerate much-needed modernization of our Nation's electricity grid. This research will advance the development and application of high-temperature superconductors, which have the potential to alleviate congestion on an electricity grid that is experiencing increased demand from consumers. Making investments to modernize our electricity grid; securing a diverse and stable supply of

483

Fuel cell components and systems having carbon-containing electrically-conductive hollow fibers  

DOE Patents [OSTI]

According to one embodiment, a system includes a structure having an ionically-conductive, electrically-resistive electrolyte/separator layer covering an inner or outer surface of a carbon-containing electrically-conductive hollow fiber and a catalyst coupled to the hollow fiber, an anode extending along at least part of a length of the structure, and a cathode extending along at least part of the length of the structure, the cathode being on an opposite side of the hollow fiber as the anode. In another embodiment, a method includes acquiring a structure having an ionically-conductive, electrically-resistive electrolyte/separator layer covering an inner or outer surface of a carbon-containing electrically-conductive hollow fiber and a catalyst along one side thereof, adding an anode that extends along at least part of a length of the structure, and adding a cathode that extends along at least part of the length of the structure on an opposite side as the anode.

Langry, Kevin C.; Farmer, Joseph C.

2014-07-08T23:59:59.000Z

484

E-Print Network 3.0 - assist system crada Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

transmission cable (138 kV) system on June 25, 2008 at Holbrook site, Long... of electric power without losses Cooperative Research and Development Agreements (CRADA) of BNL...

485

Integrated operation of electric vehicles and renewable generation in a smart distribution system  

Science Journals Connector (OSTI)

Abstract Distribution system complexity is increasing mainly due to technological innovation, renewable Distributed Generation (DG) and responsive loads. This complexity makes difficult the monitoring, control and operation of distribution networks for Distribution System Operators (DSOs). In order to cope with this complexity, a novel method for the integrated operational planning of a distribution system is presented in this paper. The method introduces the figure of the aggregator, conceived as an intermediate agent between end-users and DSOs. In the proposed method, energy and reserve scheduling is carried out by both aggregators and DSO. Moreover, Electric Vehicles (EVs) are considered as responsive loads that can participate in ancillary service programs by providing reserve to the system. The efficiency of the proposed method is evaluated on an 84-bus distribution test system. Simulation results show that the integrated scheduling of \\{EVs\\} and renewable generators can mitigate the negative effects related to the uncertainty of renewable generation.

Alireza Zakariazadeh; Shahram Jadid; Pierluigi Siano

2015-01-01T23:59:59.000Z

486

Continuous electric resistance heating—Hot forming system for high-alloy metals with poor workability  

Science Journals Connector (OSTI)

A new hot forming system for high-alloy metals with poor workability is developed. This forming system is a direct combination of a forming machine and continuous electric resistance heating, and is capable of the high-speed forming of metals with flexible and precise control of elevated temperature. The prototype of the new forming system is applied to the forming of high-alloy metals with poor formability, such as a Ti–6Al–4V bar, and the basic characteristics of this forming system are clarified. Using this system, sound, high speed forming of high alloys becomes possible, and the Ti–6Al–4V bar is successfully formed without fracture.

Jun Yanagimoto; Ryo Izumi

2009-01-01T23:59:59.000Z

487

Optimal design of a hybrid solar–wind-battery system using the minimization of the annualized cost system and the minimization of the loss of power supply probability (LPSP)  

Science Journals Connector (OSTI)

Potou is an isolated site, located in the northern coast of Senegal. The populations living in this area have no easy access to electricity supply. The use of renewable energies can contribute to the improvement of the living conditions of these populations. The methodology used in this paper consists in Sizing a hybrid solar–wind-battery system optimized through multi-objective genetic algorithm for this site and the influence of the load profiles on the optimal configuration. The two principal aims are: the minimization of the annualized cost system and the minimization of the loss of power supply probability (LPSP). To study the load profile influence, three load profiles with the same energy (94 kW h/day) have been used. The achieved results show that the cost of the optim